Showing posts with label DDR. Show all posts
Showing posts with label DDR. Show all posts

Monday, August 09, 2021

Nobel laureates 1902: Lorentz, Zeeman, Fischer, Ross, Mommsen, Ducommun, Gobat

 The Nobel Prizes (Swedish: Nobelpriset, Norwegian: Nobelprisen) are prizes awarded annually by the Royal Swedish Academy of Sciences, the Swedish Academy, the Karolinska Institutet, and the Norwegian Nobel Committee to individuals and organizations who make outstanding contributions in the fields of chemistry, physics, literature, peace, and physiology or medicine. They were established by the 1895 will of Alfred Nobel, which dictates that the awards should be administered by the Nobel Foundation. The Nobel Memorial Prize in Economic Sciences was established in 1968 by the Sveriges Riksbank, the central bank of Sweden, for contributions to the field of economics. Each recipient, or "laureate", receives a gold medal, a diploma, and a sum of money, which is decided annually by the Nobel Foundation

Here is a list of 1902 Nobel laureates  




Physics: Hendrik Lorentz, Dutch physicist and academic

Hendrik Antoon Lorentz (18 July 1853 – 4 February 1928) was a Dutch physicist who shared the 1902 Nobel Prize in Physics with Pieter Zeeman for the discovery and theoretical explanation of the Zeeman effect. He also derived the transformation equations underpinning Albert Einstein's special theory of relativity.

According to the biography published by the Nobel Foundation, "It may well be said that Lorentz was regarded by all theoretical physicists as the world's leading spirit, who completed what was left unfinished by his predecessors and prepared the ground for the fruitful reception of the new ideas based on the quantum theory." He received many other honors and distinctions, including a term as chairman of the International Committee on Intellectual Cooperation, the forerunner of UNESCO, between 1925 and 1928.


Dutch stamp depicting Hendrik Lorentz

Netherlands Scott B35 Lorentz




Physics: Pieter Zeeman, Dutch physicist and academic

Pieter Zeeman (25 May 1865 – 9 October 1943) was a Dutch physicist who shared the 1902 Nobel Prize in Physics with Hendrik Lorentz for his discovery of the Zeeman effect

After Zeeman passed the qualification exams in 1885, he studied physics at the University of Leiden under Kamerlingh Onnes and Hendrik Lorentz. In 1890, even before finishing his thesis, he became Lorentz's assistant. This allowed him to participate in a research programme on the Kerr effect. In 1893 he submitted his doctoral thesis on the Kerr effect, the reflection of polarized light on a magnetized surface. After obtaining his doctorate he went for half a year to Friedrich Kohlrausch's institute in Strasbourg. In 1895, after returning from Strasbourg, Zeeman became Privatdozent in mathematics and physics in Leiden. The same year he married Johanna Elisabeth Lebret (1873–1962); they had three daughters and one son.

In 1896, shortly before moving from Leiden to Amsterdam, he measured the splitting of spectral lines by a strong magnetic field, a discovery now known as the Zeeman effect, for which he won the 1902 Nobel Prize in Physics. This research involved an investigation of the effect of magnetic fields on a light source. He discovered that a spectral line is split into several components in the presence of a magnetic field. Lorentz first heard about Zeeman's observations on Saturday 31 October 1896 at the meeting of the Royal Netherlands Academy of Arts and Sciences in Amsterdam, where these results were communicated by Kamerlingh Onnes. The next Monday, Lorentz called Zeeman into his office and presented him with an explanation of his observations, based on Lorentz's theory of electromagnetic radiation.

The importance of Zeeman's discovery soon became apparent. It confirmed Lorentz's prediction about the polarization of light emitted in the presence of a magnetic field. Thanks to Zeeman's work it became clear that the oscillating particles that according to Lorentz were the source of light emission were negatively charged, and were a thousandfold lighter than the hydrogen atom. This conclusion was reached well before J. J. Thomson's discovery of the electron. The Zeeman effect thus became an important tool for elucidating the structure of the atom.

In 1898 Zeeman was elected to membership of the Royal Netherlands Academy of Arts and Sciences in Amsterdam, and he served as its secretary from 1912 to 1920. He won the Henry Draper Medal in 1921, and several other awards and Honorary degrees. Zeeman was elected a Foreign member of the Royal Society (ForMemRS) in 1921. He retired as a professor in 1935.

Zeeman died on 9 October 1943 in Amsterdam, and was buried in Haarlem.

Dutch stamps depicting Zeeman

Netherlands 1991 MNH, Pieter Zeeman Nobel Physics Winner in 1902


Chemistry: Hermann Emil Fischer, German chemist and academic

Hermann Emil Louis Fischer (9 October 1852 – 15 July 1919) was a German chemist and 1902 recipient of the Nobel Prize in Chemistry. He discovered the Fischer esterification. He also developed the Fischer projection, a symbolic way of drawing asymmetric carbon atoms. He also hypothesized lock and key mechanism of enzyme action. He never used his first given name, and was known throughout his life simply as Emil Fischer.

In 1875, the year following his engagement with von Baeyer, he published his discovery of the organic derivatives of a new compound of hydrogen and nitrogen, hydrazine. He investigated their derivatives, establishing their relation to the diazo compounds, and he noted the readiness with which they entered into combination with other substances, giving origin to a wealth of hitherto unknown compounds. Of such condensation products undoubtedly the most important are the hydrazones, which result from the interaction with aldehydes and ketones. His observations, published in 1886, that such hydrazones, by treatment with hydrochloric acid or zinc chloride, yielded derivatives of indole, the parent substance of indigo, were a confirmation of the views advanced by von Baeyer on the subject of indigo and the many substances related to it.

He next turned to the fuchsine (then called "rosaniline") magenta dyes, and in collaboration with his cousin Otto Fischer, he published papers in 1878 and 1879 which established that these dyes were derivatives of triphenylmethane. Emil Fischer's next research was concerned with compounds related to uric acid. Here the ground had been broken by von Baeyer, but Fischer greatly advanced the field of knowledge of the purines. In 1881 and 1882 he published papers which established the formulae of uric acid, xanthine, caffeine (achieving the first synthesis), theobromine and some other compounds of this group. After purine itself was isolated, a variety of derivatives were prepared, some of which were patented in view of possible therapeutical applications.

Fischer is particularly noted for his work on sugars. Among his early discoveries related to hydrazine was that phenylhydrazine reacted with sugars to form substances which he named osazones, and which, being highly crystalline and readily formed, served to identify such carbohydrates more definitely than had been previously possible. Later, among other work, he is noted for the organic synthesis of D-(+)-glucose. He showed how to deduce the formulae of the 16 stereoisomeric glucoses, and prepared several stereoisomerides, helping to confirm the Le Bel–Van 't Hoff rule of the asymmetric carbon atom.

In the field of enzymology, Fischer is known for his proposal of "the lock and key" model as a mechanism of substrate binding.

Fischer was also instrumental in the discovery of barbiturates, a class of sedative drugs used for insomnia, epilepsy, anxiety, and anesthesia. Along with the physician Josef von Mering, he helped to launch the first barbiturate sedative, barbital, in 1904. He next carried out pioneering work on proteins. By the introduction of new methods, he succeeded in breaking down the complex albumins into amino acids and other nitrogenous compounds, the constitutions of most of which were known, and by bringing about the recombination of these units, he prepared synthetic peptides which approximated to the natural products. His researches made from 1899 to 1906 were published in 1907 with the title Untersuchungen über Aminosauren, Polypeptides und Proteine.

In 1897 he put forward the idea to create the International Atomic Weights Commission. Fischer was elected a Foreign Member of the Royal Society (ForMemRS) in 1899. He was awarded the 1902 Nobel Prize in chemistry "in recognition of the extraordinary services he has rendered by his work on sugar and purine syntheses."

Many names of chemical reactions and concepts are named after him:


  • Fischer indole synthesis
  • Fischer projection
  • Fischer oxazole synthesis
  • Fischer peptide synthesis
  • Fischer phenylhydrazine and oxazone reaction
  • Fischer–Speier esterification
  • Fischer glycosidation
  • Kiliani–Fischer synthesis



Stamp issued by Guinea Bissau depicting Emil Fischer

Guinea Bissau Nobel Prize Chemisry Emil Fischer Germany



Physiology or Medicine: Ronald Ross, Indian-English physician and mathematician

Sir Ronald Ross (13 May 1857 – 16 September 1932) was a British medical doctor who received the Nobel Prize for Physiology or Medicine in 1902 for his work on the transmission of malaria, becoming the first British Nobel laureate, and the first born outside Europe. His discovery of the malarial parasite in the gastrointestinal tract of a mosquito in 1897 proved that malaria was transmitted by mosquitoes, and laid the foundation for the method of combating the disease. 

He was a polymath, writing a number of poems, published several novels, and composed songs. He was also an amateur artist and natural mathematician. He worked in the Indian Medical Service for 25 years. It was during his service that he made the groundbreaking medical discovery. 

After resigning from his service in India, he joined the faculty of Liverpool School of Tropical Medicine, and continued as Professor and Chairman of Tropical Medicine of the institute for 10 years. In 1926 he became Director-in-Chief of the Ross Institute and Hospital for Tropical Diseases, which was established in honour of his works. He remained there until his death.

Indian stamp and FDC depicting Ronald Ross

Sir Ronald Ross - India Discovery Of The Malaria Parasite

Sir Ronald Ross - India Discovery Of The Malaria Parasite FDC

Literature: Theodor Mommsen, German archaeologist, journalist, and politician

Christian Matthias Theodor Mommsen (30 November 1817 – 1 November 1903) was a German classical scholar, historian, jurist, journalist, politician and archaeologist. He is widely regarded as one of the greatest classicists of the 19th century. His work regarding Roman history is still of fundamental importance for contemporary research. He received the Nobel Prize in Literature in 1902 for being "the greatest living master of the art of historical writing, with special reference to his monumental work, A History of Rome", after having been nominated by 18 members of the Prussian Academy of Sciences. He was also a prominent German politician, as a member of the Prussian and German parliaments. His works on Roman law and on the law of obligations had a significant impact on the German civil code.

German, Berlin and East German stamps depicting Theodor Mommsen

DDR 1950 Germany Theodor Mommsen


Germany Berlin 1957 Theodor  Mommsen

Germany 2017 MNH Theodor Mommsen



Peace: Élie Ducommun, Swiss journalist and educator

Élie Ducommun (19 February 1833, Geneva – 7 December 1906, Bern) was a Swiss peace activist. He was a Nobel laureate, awarded the 1902 Nobel Peace Prize, which he shared with Charles Albert Gobat.

Born in Geneva, he worked as a tutor, language teacher, journalist and a translator for the Swiss federal Chancellery (1869–1873).

In 1867 he helped to found the Ligue de la paix et de la liberté (League of Peace and Freedom), though he continued working at other positions, including secretary for the Jura-Simplon Steel Company from 1873 to 1891. That year, he was appointed director of the newly formed Bureau international de la paix (International Peace Office), the first non-governmental international peace organization, based in Bern. He refused to accept a salary for the position, stating that he wished to serve in this capacity solely for reasons of idealism.

His keen organizational skills ensured the group's success. He was awarded in the Nobel Peace Prize in 1902, and served as director of the organization until his death in 1906.

Stamp issued by Guinea Bissau depicting Élie Ducommun





Peace: Charles Albert Gobat, Swiss lawyer and politician

Charles Albert Gobat (21 May 1843 – 16 March 1914) was a Swiss lawyer, educational administrator, and politician who jointly received the Nobel Peace Prize with Élie Ducommun in 1902 for their leadership of the Permanent International Peace Bureau.

After completing his Ph.D, Gobat began his practicing law in Bern and also lectured on French civil law at Bern University. He then opened an office in Delémont in the canton of Bern, which soon became the leading legal firm of the district.

After practicing law for fifteen years, he became involved in politics and education. In 1882, he was appointed superintendent of public instruction for the canton of Bern, a position he held for thirty years. He was a progressive in educational philosophy and he made many important reforms in the education system. He reformed the system of primary training, obtained increased budgetary support to improve the teacher-pupil ratio, supported the study of living languages, and provided pupils with an alternative to the traditionally narrow classical education by establishing curricula in vocational & professional training.

He won acclaim for his erudite République de Berne et la France pendant les guerres de religion, which was published in 1891 and also widespread recognition for A People's History of Switzerland, which was published in 1900.

He also pursued a career in politics. He was elected to many important positions. He was elected to the Grand Council of Bern in 1882. From 1884 to 1890, he was a member of the Council of States of Switzerland and from 1890 until his death in 1914, he was a member of the National Council, the other chamber of the central Swiss legislative body. In both politics and education, he was a liberal reformer. In 1902, he sponsored several legislation which applied the principle of arbitration to commercial treaties. Gobat worked with the Inter-Parliamentary Union, which was founded by William Randal Cremer, the winner of the Nobel Peace Prize in 1903, in 1889. In 1892 he became the president of the union's fourth conference, which was held in Bern and which founded the Bureau Interparlementaire. He served as general secretary of the bureau, an information office dealing with peace movements, international conciliation, and communication among national parliamentary bodies. The third conference of the union, held in Rome in 1891, established the International Peace Bureau, of which Gobat was director when it was awarded the Nobel peace prize in 1910.


Stamp issued by Guinea Bissau depicting Albert Gobat

Wednesday, June 30, 2021

June 30th in stamps Walter Ulbricht, John William Strutt

Here are some events that happened on June 30th. It could be an event or a person that died or was born on that day


1893 Born: Walter Ulbricht, German soldier and politician (d. 1973)

Walter Ernst Paul Ulbricht (June 1893 – 1 August 1973) was a German communist politician. Ulbricht played a leading role in the creation of the Weimar-era Communist Party of Germany (KPD) and later (after spending the years of Nazi rule in exile in France and the Soviet Union) in the early development and establishment of the German Democratic Republic in East Germany. As the First Secretary of the Socialist Unity Party from 1950 to 1971, he was the chief decision-maker in East Germany. From President Wilhelm Pieck's death in 1960 on, he was also the East German head of state until his own death in 1973. As the firm leader of the strongest and most important Communist satellite, Ulbricht had a degree of bargaining power with the Kremlin that he used effectively. For example he demanded the building of the Berlin Wall in 1961 when the Kremlin was reluctant.

Ulbricht began his political life during the German Empire, when he joined first the Social Democratic Party of Germany (SPD) in 1912, the anti-World War I Independent Social Democratic Party of Germany (USPD) in 1917 and deserted the Imperial German Army in 1918. He joined the Communist Party of Germany in 1920 and became a leading party functionary, serving in its Central Committee from 1923 onward. After the Nazi takeover of Germany in 1933, Ulbricht lived in Paris and Prague from 1933 to 1937 and in the Soviet Union from 1937 to 1945.

After the end of World War II, Ulbricht re-organized the German Communist Party in the Soviet occupation zone along Stalinist lines. He played a key role in the forcible merger of the KPD and SPD into the Socialist Unity Party of Germany (SED) in 1946. He became the First Secretary of the SED and effective leader of the recently established East Germany in 1950. The Soviet Army occupation force violently suppressed the uprising of 1953 in East Germany on 17 June 1953, while Ulbricht hid in the Soviet Army headquarters in Berlin-Karlshorst. East Germany joined the Soviet-controlled Warsaw Pact upon its founding in 1955. Ulbricht presided over the total suppression of civil and political rights in the East German state, which functioned as a communist-ruled dictatorship from its founding in 1949 onward.

The nationalization of East German industry under Ulbricht failed to raise the standard of living to a level comparable to that of West Germany. The result was massive emigration, with hundreds of thousands of people fleeing the country to the west every year in the 1950s. When Soviet Premier Nikita Khrushchev gave permission for a wall to stop the outflow in Berlin, Ulbricht had the Berlin Wall built in 1961, which triggered a diplomatic crisis and succeeded in curtailing emigration. The failures of Ulbricht's New Economic System and Economic System of Socialism from 1963 to 1970 led to his forcible retirement for "health reasons" and replacement as First Secretary in 1971 by Erich Honecker with Soviet approval. Ulbricht suffered a stroke and died in 1973.


East German stamps depicting Walter Ulbricht

East Germany DDR 1961 Walter Ulbricht

DDR 1961-1973 Chairman Walter Ulbricht Set


1919 Died: John William Strutt, 3rd Baron Rayleigh, English physicist and academic, Nobel Prize laureate (b. 1842)

John William Strutt, 3rd Baron Rayleigh(12 November 1842 – 30 June 1919), was a British scientist who made extensive contributions to both theoretical and experimental physics. He spent all of his academic career at the University of Cambridge. Among many honors, he received the 1904 Nobel Prize in Physics "for his investigations of the densities of the most important gases and for his discovery of argon in connection with these studies." He served as President of the Royal Society from 1905 to 1908 and as Chancellor of the University of Cambridge from 1908 to 1919.

Rayleigh provided the first theoretical treatment of the elastic scattering of light by particles much smaller than the light's wavelength, a phenomenon now known as "Rayleigh scattering", which notably explains why the sky is blue. He studied and described transverse surface waves in solids, now known as "Rayleigh waves". He contributed extensively to fluid dynamics, with concepts such as the Rayleigh number (a dimensionless number associated with natural convection), Rayleigh flow, the Rayleigh–Taylor instability, and Rayleigh's criterion for the stability of Taylor–Couette flow. He also formulated the circulation theory of aerodynamic lift. In optics, Rayleigh proposed a well known criterion for angular resolution. His derivation of the Rayleigh–Jeans law for classical black-body radiation later played an important role in the birth of quantum mechanics (see Ultraviolet catastrophe). Rayleigh's textbook The Theory of Sound (1877) is still used today by acousticians and engineers.

Stamp issued by Guinea Bissau depicting Lord Rayleigh

Guinea Bissau Nobel Prize Physics John William Strutt Rayleigh

Tuesday, June 22, 2021

June 22nd in stamps Battle of Sisak, Wilhelm von Humboldt, Konrad Zuse

Here are some events that happened on June 22nd. It could be an event or a person that died or was born on that day


1593 – Battle of Sisak: Allied Christian troops defeat the Ottomans.

The Battle of Sisak (Croatian: Bitka kod Siska; Slovene: Bitka pri Sisku; German: Schlacht bei Sissek; Turkish: Kulpa Bozgunu) was fought on 22 June 1593 between Ottoman regional forces of Telli Hasan Pasha, the military Governor (Beglerbeg) of the Eyalet of Bosnia, and a combined Christian army from the Habsburg lands, mainly Kingdom of Croatia and Inner Austria. The battle took place at Sisak, central Croatia, at the confluence of the rivers Sava and Kupa.

Earlier in 1591 and 1592 the Ottomans had twice failed to capture the Sisak fortress, but managed to take the strategically important fortress of Bihać in 1592. The Sisak fortress was again besieged by a large Ottoman force on 15 June 1593. The garrison in Sisak was commanded by Blaž Đurak and Matija Fintić, both from the Diocese of Zagreb.

An army under the supreme command of the Styrian general Ruprecht von Eggenberg was quickly assembled to break the siege. The Croatian troops were led by the Ban of Croatia, Thomas Erdődy, and major forces from the Duchy of Carniola and the Duchy of Carinthia were led by Andreas von Auersperg, nicknamed the "Carniolan Achilles". They made a surprise attack on the besieging forces on 22 June. The ensuing battle resulted in a crushing defeat for the regional Ottoman forces with Hasan killed, triggering the Long War.


Slovenian and Croatian stamps issued in 1993 to commemorate the 400 years anniversary of the battle of Sisak

Croatia 1993 400th Anniversary Of Battle Of Sisak

Slovenia 1993 400th Anniversary Of Battle Of Sisak



1767 Born: Wilhelm von Humboldt, German philosopher, academic, and politician, Interior Minister of Prussia (d. 1835)

Friedrich Wilhelm Christian Karl Ferdinand von Humboldt (22 June 1767 – 8 April 1835) was a Prussian philosopher, linguist, government functionary, diplomat, and founder of the Humboldt University of Berlin, which was named after him in 1949 (and also after his younger brother, Alexander von Humboldt, a naturalist).

He is especially remembered as a linguist who made important contributions to the philosophy of language, ethnolinguistics and to the theory and practice of education. He made a major contribution to the development of liberalism by envisioning education as a means of realizing individual possibility rather than a way of drilling traditional ideas into youth to suit them for an already established occupation or social role. In particular, he was the architect of the Humboldtian education ideal, which was used from the beginning in Prussia as a model for its system of public education, as well as in the United States and Japan. He was elected as a member of the American Philosophical Society in 1822.

Berlin and East German stamps depicting Wilhelm von Humboldt

Germany Berlin Wilhelm Von Humboldt

DDR Wilhelm von Humboldt

Germany-Berlin Wilhelm von Humboldt



1910 Born: Konrad Zuse, German computer scientist and engineer, invented the Z3 computer (d. 1995)

he Z3 was a German electromechanical computer designed by Konrad Zuse. It was the world's first working programmable, fully automatic digital computer. The Z3 was built with 2,600 relays, implementing a 22-bit word length that operated at a clock frequency of about 4–5 Hz. Program code was stored on punched film. Initial values were entered manually.

The Z3 was completed in Berlin in 1941 but was not considered vital, so it was never put into everyday operation. Based on the work of Hans Georg Küssner (cf. Küssner effect) e.g. a "Program to Compute a Complex Matrix" was written and used to solve wing flutter problems. Zuse asked the German government for funding to replace the relays with fully electronic switches, but funding was denied during World War II since such development was deemed "not war-important". The original Z3 was destroyed on 21 December 1943 during an Allied bombardment of Berlin. The Z3 was originally called V3 (Versuchsmodell 3 or Experimental Model 3) but was renamed to not be confused with Germany's V-weapons. A fully functioning replica was built in 1961 by Zuse's company, Zuse KG, and is on permanent display at Deutsches Museum in Munich.

The Z3 was demonstrated in 1998 to be, in principle, Turing-complete. However, because it lacked conditional branching, the Z3 only meets this definition by speculatively computing all possible outcomes of a calculation.

Thanks to this machine and its predecessors, Konrad Zuse is often regarded as the inventor of the computer.

German stamp depicting Konrad Zuse

Germany 2010 Konrad Zuse 1st day cancellation




Saturday, May 29, 2021

May 29th in stamps Cornelis Tromp, Rhode Island, Wisconsin, Maximilian I of Mexico, theory of general relativity is tested, JFK

Here are some events that happened on May 29th. It could be an event or a person that died or was born on that day


1691 Died: Cornelis Tromp, Dutch admiral (b. 1629)

Cornelis Maartenszoon Tromp (3 September 1629 – 29 May 1691) was a Dutch naval officer who served as lieutenant-admiral general in the Dutch Navy, and briefly as a general admiral in the Royal Danish Navy. Tromp fought in the Anglo-Dutch Wars and the Scanian War. His father was Lieutenant Admiral Maarten Tromp.

Tromp was a very aggressive squadron commander who personally relished the fight, preferring the direct attack having the weather gage over line-of-battle tactics. As a result, he had to change ships often: four times at the Four Days' Battle, three times at Schooneveld and two times at Texel. He was popular with his crews, despite the danger he put them in, because of his easy-going manners and his supporting the cause of the House of Orange against the States regime of Johan de Witt. However, he often treated his fellow officers with contempt, both his equals and superiors.

Tromp is infamous for his insubordination, although the two examples most often mentioned in this context, not following De Ruyter on the second day of the Four Days' Battle and chasing the English rear in the St James's Day Fight, seem to have been honest mistakes. He was very jealous of De Ruyter but generally treated him with respect, though he considered him too common. Tromp tried to imitate the lifestyle of the nobility, marrying a rich elderly widow, Margaretha van Raephorst, in 1667. He had no children. At home, without fighting to distract him, Cornelis, or Kees as he was normally called, grew quickly bored and indolent. He had the reputation of being a heavy drinker, so much so that many inns at the time were named after him.

Tromp was a vain man, having an extremely high opinion of himself, which he never hesitated in sharing with others. He felt that, son of a famous father, he had a natural right to the position of naval hero. During his life he posed as a sitter for at least 22 paintings, a record for the 17th century, many by top artists such as Ferdinand Bol. His art possessions were displayed in his estate, that long after his death was called 'Trompenburgh', the manor house built in the form of a warship.

As his wider family was among the most fanatical supporters of Orange, he participated in most of their schemes, especially those of his brother-in-law Johan Kievit, a shrewd and unscrupulous intriguer. Tromp however had no great enthusiasm for subtle plotting; later in life he came to regret many of his actions. He died in great mental anguish, convinced he would go to hell as punishment for his crimes.

Dutch stamp depicting Cornelis Tromp

Cornelis Tromp




1790 – Rhode Island becomes the last of North America's original Thirteen Colonies to ratify the Constitution and become one of the United States.

Rhode Island, officially the State of Rhode Island, is a state in the New England region of the United States. It is the smallest U.S. state by area and the seventh-least populous (1,098,163 according to the 2020 census), but it is also the second-most densely populated behind New Jersey. The state takes its name from Rhode Island; however, most of the state is located on the mainland. The state has land borders with Connecticut to the west, Massachusetts to the north and east, and the Atlantic Ocean to the south via Rhode Island Sound and Block Island Sound. It also shares a small maritime border with New York. Providence is the state capital and most populous city in Rhode Island.

On May 4, 1776, the Colony of Rhode Island and Providence Plantations was the first of the Thirteen Colonies to renounce its allegiance to the British Crown, and it was the fourth state to ratify the Articles of Confederation, doing so on February 9, 1778. The state boycotted the 1787 convention, which drew up the United States Constitution and initially refused to ratify it; it was the last of the original 13 states to do so, on May 29, 1790.

Formerly named the State of Rhode Island and Providence Plantations since its accession to the Union in 1790, voters in the state approved an amendment in November 2020 to the state constitution, renaming itself the State of Rhode Island. This change took effect when the results were certified on November 30, 2020. Rhode Island's official nickname is the "Ocean State", a reference to the large bays and inlets that amount to about 14% of its total area.

US  Rhode Island Statehood Bicentennial stamp

Rhode Island Statehood Bicentennial



1848 – Wisconsin is admitted as the 30th U.S. state.

Wisconsin is a state in the upper Midwestern United States, bordered by Minnesota to the west; Iowa to the southwest; Illinois to the south; Lake Michigan to the east; Michigan to the northeast; and Lake Superior to the north. Wisconsin is the 23rd-largest state by total area and the 20th-most populous.

Milwaukee, its largest city, sits on the western shore of Lake Michigan. The state capital, Madison, is currently the second most populated and fastest growing city in the state. Green Bay and Kenosha, the third and fourth most populated Wisconsin cities respectively, also sit on the western shores of Lake Michigan. The state is divided into 72 counties.

Wisconsin's geography is diverse, having been greatly impacted by glaciers during the Ice Age with the exception of the Driftless Area. The Northern Highland and Western Upland along with a part of the Central Plain occupies the western part of the state, with lowlands stretching to the shore of Lake Michigan. Wisconsin is third to Ontario and Michigan in the length of its Great Lakes coastline.

At the time of European contact, the area that is now Wisconsin was inhabited by Algonquian and Siouan nations. During the 19th and early 20th centuries, many European settlers entered the state, many of whom emigrated from Germany and Scandinavia. Like neighboring Minnesota, the state remains a center of German American and Scandinavian American culture. The state is one of the nation's leading dairy producers and is known as "America's Dairyland"; it is particularly famous for its cheese. The state is also famous for its beer, particularly and historically in Milwaukee. Manufacturing (especially paper products), information technology, cranberries, ginseng, and tourism are also major contributors to the state's economy.

US Wisconsin Statehood stamps

Wisconsin Statehood


Wisconsin Statehood




1864 – Emperor Maximilian I of Mexico arrives in Mexico for the first time.

Maximilian I (Spanish: Fernando Maximiliano José María de Habsburgo-Lorena; 6 July 1832 – 19 June 1867) was the only monarch of the Second Mexican Empire. He was a younger brother of the Austrian emperor Franz Joseph I. After a distinguished career in the Austrian Navy as its commander, he accepted an offer by Napoleon III of France to rule Mexico, conditional on a national plebiscite in his favour.

Below are some Mexican stamps depicting Maximilian I

Fernando Maximiliano José María de Habsburgo-Lorena; 6 July 1832 – 19 June 1867

Fernando Maximiliano José María de Habsburgo-Lorena; 6 July 1832 – 19 June 1867




1917 Born: John F. Kennedy, 35th President of the United States (d. 1963)

John Fitzgerald Kennedy (May 29, 1917 – November 22, 1963), often referred to by his initials JFK and Jack, was an American politician who served as the 35th president of the United States from January 1961 until his assassination in November 1963. Kennedy served at the height of the Cold War, and the majority of his work as president concerned relations with the Soviet Union and Cuba. A Democrat, Kennedy represented Massachusetts in the U.S. House of Representatives and Senate prior to becoming president.

Kennedy was born into a wealthy, political family in Brookline, Massachusetts. He graduated from Harvard University in 1940, before joining the U.S. Naval Reserve the following year. During World War II, he commanded a series of PT boats in the Pacific theater and earned the Navy and Marine Corps Medal for his service. After a brief stint in journalism, Kennedy represented a working-class Boston district in the U.S. House of Representatives from 1947 to 1953. He was subsequently elected to the U.S. Senate and served as the junior Senator from Massachusetts from 1953 to 1960. While in the Senate, Kennedy published his book, Profiles in Courage, which won a Pulitzer Prize. In the 1960 presidential election, he narrowly defeated Republican opponent Richard Nixon, who was the incumbent vice president.

Kennedy's administration included high tensions with communist states in the Cold War. As a result, he increased the number of American military advisers in South Vietnam. In April 1961, he authorized an attempt to overthrow the Cuban government of Fidel Castro in the Bay of Pigs Invasion. Kennedy authorized the Cuban Project in November 1961. He rejected Operation Northwoods (plans for false flag attacks to gain approval for a war against Cuba) in March 1962. However, his administration continued to plan for an invasion of Cuba in the summer of 1962. The following October, U.S. spy planes discovered Soviet missile bases had been deployed in Cuba; the resulting period of tensions, termed the Cuban Missile Crisis, nearly resulted in the breakout of a global thermonuclear conflict. The Strategic Hamlet Program began in Vietnam during his presidency. Domestically, Kennedy presided over the establishment of the Peace Corps and the continuation of the Apollo space program. He also supported the civil rights movement, but was only somewhat successful in passing his New Frontier domestic policies.

On November 22, 1963, he was assassinated in Dallas. Vice President Lyndon B. Johnson assumed the presidency upon Kennedy's death. Marxist and former U.S. Marine Lee Harvey Oswald was arrested for the state crime, but he was shot and killed by Jack Ruby two days later. The FBI and the Warren Commission both concluded Oswald had acted alone in the assassination, but various groups contested the Warren Report and believed that Kennedy was the victim of a conspiracy. After Kennedy's death, Congress enacted many of his proposals, including the Civil Rights Act and the Revenue Act of 1964. Kennedy ranks highly in polls of U.S. presidents with historians and the general public. His personal life has also been the focus of considerable sustained interest following public revelations in the 1970s of his chronic health ailments and extramarital affairs.

Stamps from the US, German and Monaco depicting John F. Kennedy

1964 Kennedy Memorial 5 cents

Monaco , 1964 , John F Kennedy

US 2017 John F Kennedy

West Berlin 1964 President Kennedy 40pf




1919 – Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin

Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). His work is also known for its influence on the philosophy of science. He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed "the world's most famous equation". He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory.

The son of a salesman who later operated an electrochemical factory, Einstein was born in the German Empire but moved to Switzerland in 1895 and renounced his German citizenship in 1896. Specializing in physics and mathematics, he received his academic teaching diploma from the Swiss Federal Polytechnic School (German: eidgenössische polytechnische Schule) in Zürich in 1900. The following year, he acquired Swiss citizenship, which he kept for his entire life. After initially struggling to find work, from 1902 to 1909 he was employed as a patent examiner at the Swiss Patent Office in Bern.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led him to develop his special theory of relativity during his time at the Swiss Patent Office. In 1905, called his annus mirabilis (miracle year), he published four groundbreaking papers, which attracted the attention of the academic world; the first outlined the theory of the photoelectric effect, the second paper explained Brownian motion, the third paper introduced special relativity, and the fourth mass-energy equivalence. That year, at the age of 26, he was awarded a PhD by the University of Zurich.

Although initially treated with skepticism from many in the scientific community, Einstein's works gradually came to be recognised as significant advancements. He was invited to teach theoretical physics at the University of Bern in 1908 and the following year moved to the University of Zurich, then in 1911 to Charles University in Prague before returning to ETH (the newly renamed Federal Polytechnic School) in Zürich in 1912. In 1914, he was elected to the Prussian Academy of Sciences in Berlin, where he remained for 19 years. Soon after publishing his work on special relativity, Einstein began working to extend the theory to gravitational fields; he then published a paper on general relativity in 1916, introducing his theory of gravitation. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light and the quantum theory of radiation, the basis of the laser, which laid the foundation of the photon theory of light. In 1917, he applied the general theory of relativity to model the structure of the universe.

In 1933, while Einstein was visiting the United States, Adolf Hitler came to power. Because of his Jewish background, Einstein did not return to Germany. He settled in the United States and became an American citizen in 1940. On the eve of World War II, he endorsed a letter to President Franklin D. Roosevelt alerting FDR to the potential development of "extremely powerful bombs of a new type" and recommending that the US begin similar research. This eventually led to the Manhattan Project. Einstein supported the Allies, but he generally denounced the idea of using nuclear fission as a weapon. He signed the Russell–Einstein Manifesto with British philosopher Bertrand Russell, which highlighted the danger of nuclear weapons. He was affiliated with the Institute for Advanced Study in Princeton, New Jersey, until his death in 1955.

He published more than 300 scientific papers and more than 150 non-scientific works. His intellectual achievements and originality have made the word "Einstein" synonymous with "genius". Eugene Wigner compared him to his contemporaries, writing that "Einstein's understanding was deeper even than Jancsi von Neumann's. His mind was both more penetrating and more original".

Stamps from various countries depicting Albert Einstein

1966  ¢.08 Albert Einstein


Albert Einstein US 15c


Germany DDR 1979 Albert Einstein


Italy 1979 Birth Centenary of Albert Einstein


Monaco 1979 Birth Centenary of Albert Einstein


San Marino 1979 Birth Centenary of Albert Einstein


Sunday, May 23, 2021

May 23rd in stamps Carl Linnaeus, South Carolina statehood, Otto Lilienthal

Here are some events that happened on May 23rd. It could be an event or a person that died or was born on that day


1707 Born: Carl Linnaeus, Swedish botanist, physician, and zoologist (d. 1778)

Carl Linnaeus (23 May 1707 – 10 January 1778), also known after his ennoblement as Carl von Linné, was a Swedish botanist, zoologist, and physician who formalised binomial nomenclature, the modern system of naming organisms. He is known as the "father of modern taxonomy". Many of his writings were in Latin, and his name is rendered in Latin as Carolus Linnæus (after 1761 Carolus a Linné).

Linnaeus was born in the countryside of Småland in southern Sweden. He received most of his higher education at Uppsala University and began giving lectures in botany there in 1730. He lived abroad between 1735 and 1738, where he studied and also published the first edition of his Systema Naturae in the Netherlands. He then returned to Sweden where he became professor of medicine and botany at Uppsala. In the 1740s, he was sent on several journeys through Sweden to find and classify plants and animals. In the 1750s and 1760s, he continued to collect and classify animals, plants, and minerals, while publishing several volumes. He was one of the most acclaimed scientists in Europe at the time of his death.

Philosopher Jean-Jacques Rousseau sent him the message: "Tell him I know no greater man on earth." Johann Wolfgang von Goethe wrote: "With the exception of Shakespeare and Spinoza, I know no one among the no longer living who has influenced me more strongly." Swedish author August Strindberg wrote: "Linnaeus was in reality a poet who happened to become a naturalist." Linnaeus has been called Princeps botanicorum (Prince of Botanists) and "The Pliny of the North". He is also considered as one of the founders of modern ecology.

In botany and zoology, the abbreviation L. is used to indicate Linnaeus as the authority for a species' name. In older publications, the abbreviation "Linn." is found. Linnaeus's remains comprise the type specimen for the species Homo sapiens following the International Code of Zoological Nomenclature, since the sole specimen that he is known to have examined was himself.

Russian and East German stamps depicting Linnaeus

Germany Carl Linnaeus,Swedish Botanist


Russia USSR 1957 Carl Linnaeus,Swedish Botanist


1788 – South Carolina ratifies the United States Constitution as the eighth American state.

South Carolina (/ˌkærəˈlaɪnə/ (About this soundlisten)) is a state in the Southeastern region of the United States. It is bordered to the north by North Carolina, to the southeast by the Atlantic Ocean, and to the southwest by Georgia across the Savannah River. South Carolina is the 40th most extensive and 23rd most populous U.S. state. In 2019 its GDP was $213.45 billion. South Carolina is composed of 46 counties. The capital is Columbia with a population of 133,273 in 2019; while its largest city is Charleston with a 2019 population of 135,257. The Greenville–Anderson–Mauldin metropolitan area is the largest in the state, with a 2018 population estimate of 906,626.

South Carolina was named in honor of King Charles I of England, who first formed the English colony, with Carolus being Latin for "Charles". South Carolina became the eighth state to ratify the U.S. Constitution on May 23, 1788. It also became the first state to vote in favor of secession from the Union on December 20, 1860. After the American Civil War, it was readmitted into the United States on June 25, 1868.

US stamps depicting South Carolina

South Carolina, 300 Years

ZIP Block Of 4 - South Carolina Ratification



1848 Born: Otto Lilienthal, German pilot and engineer (d. 1896)

Karl Wilhelm Otto Lilienthal (23 May 1848 – 10 August 1896) was a German pioneer of aviation who became known as the "flying man". He was the first person to make well-documented, repeated, successful flights with gliders. Newspapers and magazines published photographs of Lilienthal gliding, favorably influencing public and scientific opinion about the possibility of flying machines becoming practical. On 9 August 1896, his glider stalled and he was unable to regain control. Falling from about 15 m (50 ft), he broke his neck and died the next day.

Lilienthal's greatest contribution was in the development of heavier-than-air flight. He made his flights from an artificial hill he built near Berlin and from natural hills, especially in the Rhinow region.

The filing of a U.S. Patent in 1894 by Lilienthal directed pilots to grip the "bar" for carrying and flying the hang glider. The A-frame of Percy Pilcher and Lilienthal echoes in today's control frame for hang gliders and ultralight aircraft. Working in conjunction with his brother Gustav, Lilienthal made over 2,000 flights in gliders of his design starting in 1891 with his first glider version, the Derwitzer, until his death in a gliding crash in 1896. His total flying time was five hours.

At the beginning, in 1891, Lilienthal succeeded with jumps and flights covering a distance of about 25 meters (82 ft). He could use the updraft of a 10 m/s wind against a hill to remain stationary with respect to the ground, shouting to a photographer on the ground to maneuver into the best position for a photo. In 1893, in the Rhinow Hills, he was able to achieve flight distances as long as 250 meters (820 ft). This record remained unbeaten for him or anyone else at the time of his death.

Lilienthal did research in accurately describing the flight of birds, especially storks, and used polar diagrams for describing the aerodynamics of their wings. He made many experiments in an attempt to gather reliable aeronautical data.

German stamps depicting Otto Lilienthal

Germany Mi 538x Sc C55 1934 War 3rd Reich Airmail Flugpost Lilienthal

Germany Otto Lilienthal



Friday, April 30, 2021

April 30th in stamps David Thompson, Carl Friedrich Gauss, Einstein completes his doctoral thesis, Louisiana Statehood, David Thompson

Here are some events that happened on April 30th. It could be an event or a person that died or was born on that day


1770 Born: David Thompson, English-Canadian cartographer and explorer (d. 1857)

David Thompson (30 April 1770 – 10 February 1857) was a British-Canadian fur trader, surveyor, and cartographer, known to some native peoples as Koo-Koo-Sint or "the Stargazer". Over Thompson's career, he traveled some 90,000 kilometers (56,000 mi) across North America, mapping 4.9 million square kilometers (1.9 million square miles) of North America along the way. For this historic feat, Thompson has been described as the "greatest practical land geographer that the world has produced".

Canadian stamp issued to commemorate David Thompson

Canada David Thompson and Map : Explorer & Geographer


1777 Born: Carl Friedrich Gauss, German mathematician and physicist (d. 1855)

Johann Carl Friedrich Gauss (Latin: Carolus Fridericus Gauss; 30 April 1777 – 23 February 1855) was a German mathematician and physicist who made significant contributions to many fields in mathematics and science. Sometimes referred to as the Princeps mathematicorum (Latin for '"the foremost of mathematicians"') and "the greatest mathematician since antiquity", Gauss had an exceptional influence in many fields of mathematics and science, and is ranked among history's most influential mathematicians.

German stamp and First Day Cover depicting Gauss


Germany, Bundesrepublik Deutschland, Carl Friedrich Gauss


Germany 1977 FDC Mathematician Carl Friedrich Gauss Plane of Complex Numbers



1803 – Louisiana Purchase: The United States purchases the Louisiana Territory from France for $15 million, more than doubling the size of the young nation.

The Louisiana Purchase (French: Vente de la Louisiane 'Sale of Louisiana') was the acquisition of the territory of Louisiana by the United States from France in 1803. In return for fifteen million dollars, the U.S. acquired a total of 828,000 sq mi (2,140,000 km2; 530,000,000 acres). The treaty was negotiated by French Treasury Minister François Barbé-Marbois (acting on behalf of Napoleon) and American delegates James Monroe and Robert R. Livingston (acting on behalf of President Thomas Jefferson).

The Kingdom of France had controlled the Louisiana territory from 1699 until it was ceded to Spain in 1762. In 1800, Napoleon, then the First Consul of the French Republic, regained ownership of Louisiana as part of a broader project to re-establish a French colonial empire in North America. However, France's failure to put down a revolt in Saint-Domingue, coupled with the prospect of renewed warfare with the United Kingdom, prompted Napoleon to consider selling Louisiana to the United States.

Here are some US stamps and a First Day Cover depicting the Louisiana Purchase

1953  U.S.Scott #1020 Louisiana Purchase


US Scott #327 Louisiana Purchase-10¢ Map of Purchase


2003 37c Louisiana Purchase Scott 3782


2003 37c Louisiana Purchase Scott 3782  FDC


1812 – The Territory of Orleans becomes the 18th U.S. state under the name Louisiana.

Louisiana is a state in the Deep South and South Central regions of the United States. It is the 19th-smallest by area and the 25th most populous of the 50 U.S. states. Louisiana is bordered by the state of Texas to the west, Arkansas to the north, Mississippi to the east, and the Gulf of Mexico to the south. A large part of its eastern boundary is demarcated by the Mississippi River. Louisiana is the only U.S. state with political subdivisions termed parishes, which are equivalent to counties. The state's capital is Baton Rouge, and its largest city is New Orleans.

Much of the state's lands were formed from sediment washed down the Mississippi River, leaving enormous deltas and vast areas of coastal marsh and swamp. These contain a rich southern biota; typical examples include birds such as ibises and egrets. There are also many species of tree frogs, and fish such as sturgeon and paddlefish. In more elevated areas, fire is a natural process in the landscape and has produced extensive areas of longleaf pine forest and wet savannas. These support an exceptionally large number of plant species, including many species of terrestrial orchids and carnivorous plants. Louisiana has more Native American tribes than any other southern state, including four that are federally recognized, ten that are state recognized, and four that have not received recognition.

Some Louisiana urban environments have a multicultural, multilingual heritage, being so strongly influenced by a mixture of 18th-century French, Haitian, Spanish, French Canadian, Native American, and African cultures that they are considered to be exceptional in the U.S. Before the American purchase of the territory in 1803, the present-day State of Louisiana had been both a French colony and for a brief period a Spanish one. In addition, colonists imported numerous African people as slaves in the 18th century. Many came from peoples of the same region of West Africa, thus concentrating their culture. In the post-Civil War environment, Anglo-Americans increased the pressure for Anglicization, and in 1921, English was for a time made the sole language of instruction in Louisiana schools before a policy of multilingualism was revived in 1974. There has never been an official language in Louisiana, and the state constitution enumerates "the right of the people to preserve, foster, and promote their respective historic, linguistic, and cultural origins".

Based on national averages, Louisiana frequently ranks low among the U.S. in terms of health, education, and development, and high in measures of poverty. In 2018, Louisiana was ranked as the least healthy state in the country, with high levels of drug-related deaths and excessive alcohol consumption, while it has had the highest homicide rate in the United States since at least the 1990s.

US Louisiana Statehood stamps

4c Louisiana Statehood 150th Anniversary

2012 Forever - Louisiana Statehood


1905 – Albert Einstein completes his doctoral thesis at the University of Zurich.

Albert Einstein (14 March 1879 – 18 April 1955) was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). His work is also known for its influence on the philosophy of science. He is best known to the general public for his mass–energy equivalence formula E = mc2, which has been dubbed "the world's most famous equation". He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory.

The son of a salesman who later operated an electrochemical factory, Einstein was born in the German Empire but moved to Switzerland in 1895 and renounced his German citizenship in 1896. Specializing in physics and mathematics, he received his academic teaching diploma from the Swiss Federal Polytechnic School (German: eidgenössische polytechnische Schule) in Zürich in 1900. The following year, he acquired Swiss citizenship, which he kept for his entire life. After initially struggling to find work, from 1902 to 1909 he was employed as a patent examiner at the Swiss Patent Office in Bern.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led him to develop his special theory of relativity during his time at the Swiss Patent Office. In 1905, called his annus mirabilis (miracle year), he published four groundbreaking papers, which attracted the attention of the academic world; the first outlined the theory of the photoelectric effect, the second paper explained Brownian motion, the third paper introduced special relativity, and the fourth mass-energy equivalence. That year, at the age of 26, he was awarded a PhD by the University of Zurich.

Although initially treated with skepticism from many in the scientific community, Einstein's works gradually came to be recognised as significant advancements. He was invited to teach theoretical physics at the University of Bern in 1908 and the following year moved to the University of Zurich, then in 1911 to Charles University in Prague before returning to ETH (the newly renamed Federal Polytechnic School) in Zürich in 1912. In 1914, he was elected to the Prussian Academy of Sciences in Berlin, where he remained for 19 years. Soon after publishing his work on special relativity, Einstein began working to extend the theory to gravitational fields; he then published a paper on general relativity in 1916, introducing his theory of gravitation. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light and the quantum theory of radiation, the basis of the laser, which laid the foundation of the photon theory of light. In 1917, he applied the general theory of relativity to model the structure of the universe.

In 1933, while Einstein was visiting the United States, Adolf Hitler came to power. Because of his Jewish background, Einstein did not return to Germany. He settled in the United States and became an American citizen in 1940. On the eve of World War II, he endorsed a letter to President Franklin D. Roosevelt alerting FDR to the potential development of "extremely powerful bombs of a new type" and recommending that the US begin similar research. This eventually led to the Manhattan Project. Einstein supported the Allies, but he generally denounced the idea of using nuclear fission as a weapon. He signed the Russell–Einstein Manifesto with British philosopher Bertrand Russell, which highlighted the danger of nuclear weapons. He was affiliated with the Institute for Advanced Study in Princeton, New Jersey, until his death in 1955.

He published more than 300 scientific papers and more than 150 non-scientific works. His intellectual achievements and originality have made the word "Einstein" synonymous with "genius". Eugene Wigner compared him to his contemporaries, writing that "Einstein's understanding was deeper even than Jancsi von Neumann's. His mind was both more penetrating and more original".

Stamps from various countries depicting Albert Einstein

1966  ¢.08 Albert Einstein


Albert Einstein US 15c


Germany DDR 1979 Albert Einstein


Italy 1979 Birth Centenary of Albert Einstein


Monaco 1979 Birth Centenary of Albert Einstein


San Marino 1979 Birth Centenary of Albert Einstein