Nobel laureates 1905: Philipp Lenard, Adolf von Baeyer, Robert Koch, Henryk Sienkiewicz, Bertha von Suttner

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 1905 Nobel laureates  

Physics: Philipp Lenard, Slovak-German physicist and academic

Philipp Eduard Anton von Lenard (7 June 1862– 20 May 1947) was a Hungarian-born German physicist and the winner of the Nobel Prize for Physics in 1905 for his work on cathode rays and the discovery of many of their properties. One of his most important contributions was the experimental realization of the photoelectric effect. He discovered that the energy (speed) of the electrons ejected from a cathode depends only on the wavelength, and not the intensity, of the incident light.

Lenard was a nationalist and anti-Semite; as an active proponent of the Nazi ideology, he supported Adolf Hitler in the 1920s and was an important role model for the "Deutsche Physik" movement during the Nazi period. Notably, he labeled Albert Einstein's contributions to science as "Jewish physics".

As a physicist, Lenard's major contributions were in the study of cathode rays, which he began in 1888. Prior to his work, cathode rays were produced in primitive, partially evacuated glass tubes that had metallic electrodes in them, across which a high voltage could be placed. Cathode rays were difficult to study using this arrangement, because they were inside sealed glass tubes, difficult to access, and because the rays were in the presence of air molecules. Lenard overcame these problems by devising a method of making small metallic windows in the glass that were thick enough to be able to withstand the pressure differences, but thin enough to allow passage of the rays. Having made a window for the rays, he could pass them out into the laboratory, or, alternatively, into another chamber that was completely evacuated. These windows have come to be known as Lenard windows. He was able to conveniently detect the rays and measure their intensity by means of paper sheets coated with phosphorescent materials.

Lenard observed that the absorption of cathode rays was, to first order, proportional to the density of the material they were made to pass through. This appeared to contradict the idea that they were some sort of electromagnetic radiation. He also showed that the rays could pass through some inches of air of a normal density, and appeared to be scattered by it, implying that they must be particles that were even smaller than the molecules in air. He confirmed some of J. J. Thomson's work, which eventually arrived at the understanding that cathode rays were streams of negatively charged energetic particles. He called them quanta of electricity or for short quanta, after Helmholtz, while Thomson proposed the name corpuscles, but eventually electrons became the everyday term. In conjunction with his and other earlier experiments on the absorption of the rays in metals, the general realization that electrons were constituent parts of the atom enabled Lenard to claim correctly that for the most part atoms consist of empty space. He proposed that every atom consists of empty space and electrically neutral corpuscules called "dynamids", each consisting of an electron and an equal positive charge.

As a result of his Crookes tube investigations, he showed that the rays produced by irradiating metals in a vacuum with ultraviolet light were similar in many respects to cathode rays. His most important observations were that the energy of the rays was independent of the light intensity, but was greater for shorter wavelengths of light.

These latter observations were explained by Albert Einstein as a quantum effect. This theory predicted that the plot of the cathode ray energy versus the frequency would be a straight line with a slope equal to Planck's constant, h. This was shown to be the case some years later. The photo-electric quantum theory was the work cited when Einstein was awarded the Nobel Prize in Physics in 1921. Suspicious of the general adulation of Einstein, Lenard became a prominent skeptic of relativity and of Einstein's theories generally; he did not, however, dispute Einstein's explanation of the photoelectric effect. Lenard grew extremely resentful of the credit accorded to Wilhelm Röntgen, who received the first Nobel Prize in physics in 1901, for the discovery of the X-ray, despite the fact that Röntgen was German and a non-Jew. Lenard wrote that he, not Roentgen, was the “mother of the X-rays,” since he had invented the apparatus used to produce them. Lenard likened Röntgen’s role to that of a “midwife” who merely assists with the birth.

Lenard received the 1905 Nobel Prize for Physics in recognition of this work.

Stamp issued by Guinea Bissau depicting Philipp Lenard

Chemistry: Adolf von Baeyer, German chemist and academic

Johann Friedrich Wilhelm Adolf von Baeyer (31 October 1835 – 20 August 1917) was a German chemist who synthesized indigo and developed a nomenclature for cyclic compounds (that was subsequently extended and adopted as part of the IUPAC organic nomenclature). He was ennobled in the Kingdom of Bavaria in 1885 and was the 1905 recipient of the Nobel Prize in Chemistry.

Baeyer charted his own path into science early on, performing experiments on plant nutrition at his paternal grandfather's Müggelsheim farm as a boy; back in the confines of Berlin, he took to the test tubes with chemical experimentation starting at the age of nine. Three years later, he synthesized a previously unknown chemical compound -double carbonate of copper and sodium. On his 13th birthday, he initiated his lifework, buying a chunk of indigo worth two Thalers for his first dye experiments.

When still a schoolboy, his chemistry teacher at the Friedrich Wilhelm Gymnasium appointed him as his assistant. After graduating from secondary school in 1853, he entered the Berlin University to study physics and mathematics. A stint in the Prussian army interrupted his study until 1856, when he returned to academia at the University of Heidelberg, intending to study chemistry under Robert Bunsen. After an argument with the renowned chemist, however, he changed his mentor to August Kekulé. He continued to collaborate with Kekule even after he returned to Berlin in 1858 for the completion of his doctorate on arsenic methyl chloride, or cacodylic chloride.

After completing his doctorate, he followed Kekulé to the University of Ghent, when Kekulé became professor there. He became a lecturer at the Berlin Gewerbeinstitut (Royal Trade Academy [de]) in 1860 and a Professor at the University of Strasbourg in 1871. In 1875, he succeeded Justus von Liebig as Chemistry Professor at the University of Munich.

Baeyer's chief achievements include the synthesis and description of the plant dye indigo, the discovery of the phthalein dyes, and the investigation of polyacetylenes, oxonium salts, nitroso compounds (1869) and uric acid derivatives (1860 and onwards) (including the discovery of barbituric acid (1864), the parent compound of the barbiturates). He was the first to propose the correct formula for indole in 1869, after publishing the first synthesis three years earlier. His contributions to theoretical chemistry include the 'strain' (Spannung) theory of triple bonds and strain theory in small carbon rings.

In 1871 he discovered the synthesis of phenolphthalein by condensation of phthalic anhydride with two equivalents of phenol under acidic conditions (hence the name). That same year he was the first to obtain synthetic fluorescein, a fluorophore pigment which is similar to naturally occurring pyoverdin that is synthesized by microorganisms (e.g., by some fluorescent strains of Pseudomonas). Baeyer named his finding "resorcinphthalein" as he had synthesized it from phthalic anhydride and resorcinol. The term fluorescein would not start to be used until 1878.

In 1872 he experimented with phenol and formaldehyde; the resinous product was a precursor for Leo Baekeland's later commercialization of Bakelite.

In 1881 the Royal Society of London awarded Baeyer the Davy Medal for his work with indigo. He was elected a Foreign Honorary Member of the American Academy of Arts and Sciences in 1884. In 1905 he was awarded the Nobel Prize in Chemistry "in recognition of his services in the advancement of organic chemistry and the chemical industry, through his work on organic dyes and hydroaromatic compounds", and he continued in full active work as one of the best-known teachers in the world of organic chemistry up to within a year of his death.

Stamp issued by Guinea Bissau depicting Adolf von Baeyer

Physiology or Medicine: Robert Koch, German physician and microbiologist

Heinrich Hermann Robert Koch (11 December 1843 – 27 May 1910) was a German physician and microbiologist. As one of the main founders of modern bacteriology, he identified the specific causative agents of tuberculosis, cholera, and anthrax and gave experimental support for the concept of infectious disease, which included experiments on humans and other animals. Koch created and improved laboratory technologies and techniques in the field of microbiology, and made key discoveries in public health. His research led to the creation of Koch's postulates, a series of four generalized principles linking specific microorganisms to specific diseases that remain today the "gold standard" in medical microbiology.


During his time as the government advisor with the Imperial Department of Health in Berlin in the 1880s, Robert Koch became interested in tuberculosis research. At the time, it was widely believed that tuberculosis was an inherited disease. However, Koch was convinced that the disease was caused by a bacterium and was infectious, and tested his four postulates using guinea pigs. Through these experiments, he found that his experiments with tuberculosis satisfied all four of his postulates. In 1882, he published his findings on tuberculosis, in which he reported the causative agent of the disease to be the slow-growing Mycobacterium tuberculosis.

For his research on tuberculosis, Koch received the Nobel Prize in Physiology or Medicine in 1905. The Robert Koch Institute is named in his honor.

Literature: Henryk Sienkiewicz, Polish journalist and author

Henryk Adam Aleksander Pius Sienkiewicz (5 May 1846 – 15 November 1916), also known by the pseudonym Litwos, was a Polish journalist, novelist and Nobel Prize laureate. He is best remembered for his historical novels, especially for his internationally known best-seller Quo Vadis (1896).

Born into an impoverished Polish noble family in Russian-ruled Congress Poland, in the late 1860s he began publishing journalistic and literary pieces. In the late 1870s he traveled to the United States, sending back travel essays that won him popularity with Polish readers. In the 1880s he began serializing novels that further increased his popularity. He soon became one of the most popular Polish writers of the turn of the 19th and 20th centuries, and numerous translations gained him international renown, culminating in his receipt of the 1905 Nobel Prize in Literature for his "outstanding merits as an epic writer."

Many of his novels remain in print. In Poland he is best known for his "Trilogy" of historical novels – With Fire and Sword, The Deluge, and Sir Michael – set in the 17th-century Polish–Lithuanian Commonwealth; internationally he is best known for Quo Vadis, set in Nero's Rome. The Trilogy and Quo Vadis have been filmed, the latter several times, with Hollywood's 1951 version receiving the most international recognition.

Polish stamps depicting Henryk Sienkiewicz

Peace: Bertha von Suttner, Austrian journalist and author, Nobel Prize laureate (b. 1843)

Bertha Felicitas Sophie Freifrau von Suttner (9 June 1843 – 21 June 1914) was an Austrian-Bohemian pacifist and novelist. In 1905, she became the second female Nobel laureate (after Marie Curie in 1903), the first woman to be awarded the Nobel Peace Prize, and the first Austrian laureate.

In 1889 Suttner became a leading figure in the peace movement with the publication of her pacifist novel, Die Waffen nieder! (Lay Down Your Arms!), which made her one of the leading figures of the Austrian peace movement. The book was published in 37 editions and translated into 12 languages. She witnessed the foundation of the Inter-Parliamentary Union and called for the establishment of the Austrian Gesellschaft der Friedensfreunde pacifist organisation in an 1891 Neue Freie Presse editorial. Suttner became chairwoman and also founded the German Peace Society the next year. She became known internationally as the editor of the international pacifist journal Die Waffen nieder!, named after her book, from 1892 to 1899. In 1897 she presented Emperor Franz Joseph I of Austria with a list of signatures urging the establishment of an International Court of Justice and took part in the First Hague Convention in 1899 with the help of Theodor Herzl, who paid for her trip as a correspondent of the Zionist newspaper, Die Welt.

Upon her husband's death in 1902, Suttner had to sell Harmannsdorf Castle and moved back to Vienna. In 1904 she addressed the International Congress of Women in Berlin and for seven months travelled around the United States, attending a universal peace congress in Boston and meeting President Theodore Roosevelt.

Though her personal contact with Alfred Nobel had been brief, she corresponded with him until his death in 1896, and it is believed that she was a major influence on his decision to include a peace prize among those prizes provided in his will, which she was awarded in the fifth term on 10 December 1905. The presentation took place on 18 April 1906 in Kristiania.

German and Austrian stamps depicting Bertha von Suttner

Nobel laureates 1903: Henri Becquerel, Marie Curie, Pierre Curie, Svante Arrhenius, Niels Ryberg Finsen, Bjørnstjerne Bjørnson, Randal Cremer

 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 1903 Nobel laureates  

Physics: Henri Becquerel, French physicist and chemist

Antoine Henri Becquerel (15 December 1852 – 25 August 1908) was a French engineer, physicist, scientist, Nobel laureate, and the first person to discover evidence of radioactivity. For work in this field he, along with Marie Skłodowska-Curie (Marie Curie) and Pierre Curie, received the 1903 Nobel Prize in Physics. 

In 1889, Becquerel became a member of the Académie des Sciences. In 1900, Becquerel won the Rumford Medal for his discovery of the radioactivity of uranium and he was made an Officer of the Legion of Honour. The Berlin-Brandenburg Academy of Sciences and Humanities awarded him the Helmholtz Medal in 1901. In 1903, Henri shared a Nobel Prize in Physics with Pierre Curie and Marie Curie for the discovery of spontaneous radioactivity. In 1905, he was awarded the Barnard Medal by the U.S. National Academy of Sciences. In 1906, Henri was elected Vice Chairman of the academy, and in 1908, the year of his death, Becquerel was elected Permanent Secretary of the Académie des Sciences. During his lifetime, Becquerel was honored with membership into the Accademia dei Lincei and the Royal Academy of Berlin.  Becquerel was elected a Foreign Member of the Royal Society (ForMemRS) in 1908. Becquerel has been honored with being the namesake of many different scientific discoveries. The SI unit for radioactivity, the becquerel (Bq), is named after him. There is a crater named Becquerel on the Moon and also a crater named Becquerel on Mars. The uranium-based mineral becquerelite was named after Henri. 

French stamp depicting Henri Becquerel

Physics: Marie Curie, Polish chemist and physicist, Nobel Prize laureate

Marie Skłodowska Curie(born Maria Salomea Skłodowska; 7 November 1867 – 4 July 1934) was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity. She was the first woman to win a Nobel Prize, is the only woman to win the Nobel prize twice, and is the only person to win the Nobel Prize in two different scientific fields. She was part of the Curie family legacy of five Nobel Prizes. She was also the first woman to become a professor at the University of Paris, and in 1995 became the first woman to be entombed on her own merits in the Panthéon in Paris.

She was born in Warsaw, in what was then the Kingdom of Poland, part of the Russian Empire. She studied at Warsaw's clandestine Flying University and began her practical scientific training in Warsaw. In 1891, aged 24, she followed her older sister Bronisława to study in Paris, where she earned her higher degrees and conducted her subsequent scientific work. She shared the 1903 Nobel Prize in Physics with her husband Pierre Curie and physicist Henri Becquerel. She won the 1911 Nobel Prize in Chemistry.

Her achievements included the development of the theory of radioactivity (a term she coined), techniques for isolating radioactive isotopes, and the discovery of two elements, polonium and radium. Under her direction, the world's first studies were conducted into the treatment of neoplasms using radioactive isotopes. She founded the Curie Institutes in Paris and in Warsaw, which remain major centres of medical research today. During World War I she developed mobile radiography units to provide X-ray services to field hospitals.

While a French citizen, Marie Skłodowska Curie, who used both surnames, never lost her sense of Polish identity. She taught her daughters the Polish language and took them on visits to Poland. She named the first chemical element she discovered polonium, after her native country.

Marie Curie died in 1934, aged 66, at a sanatorium in Sancellemoz (Haute-Savoie), France, of aplastic anemia from exposure to radiation in the course of her scientific research and in the course of her radiological work at field hospitals during World War I

Stamps from Monaco, France and Poland depicting Marie Curie

Physics: Pierre Curie, French physicist and academic

Pierre Curie (15 May 1859 – 19 April 1906) was a French physicist, a pioneer in crystallography, magnetism, piezoelectricity, and radioactivity. In 1903, he received the Nobel Prize in Physics with his wife, Marie Skłodowska-Curie, and Henri Becquerel, "in recognition of the extraordinary services they have rendered by their joint researches on the radiation phenomena discovered by Professor Henri Becquerel".

French stamp depicting Pierre and Marie Curie

Bulgarian stamp depicting Pierre Curie

Chemistry: Svante Arrhenius, Swedish physicist and chemist

Svante August Arrhenius (19 February 1859 – 2 October 1927) was a Swedish scientist. Originally a physicist, but often referred to as a chemist, Arrhenius was one of the founders of the science of physical chemistry. He received the Nobel Prize for Chemistry in 1903, becoming the first Swedish Nobel laureate. In 1905, he became director of the Nobel Institute, where he remained until his death.

Arrhenius was the first to use principles of physical chemistry to estimate the extent to which increases in atmospheric carbon dioxide are responsible for the Earth's increasing surface temperature. In the 1960s, Charles David Keeling demonstrated that the quantity of human-caused carbon dioxide emissions into the air is enough to cause global warming.

The Arrhenius equation, Arrhenius acid, Arrhenius base, lunar crater Arrhenius, Martian crater Arrhenius, the mountain of Arrheniusfjellet, and the Arrhenius Labs at Stockholm University were so named to commemorate his contributions to science.

Swedish stamps depicting Svante Arrhenius

Physiology or Medicine: Niels Ryberg Finsen, Faroese-Danish physician and educator

Niels Ryberg Finsen (15 December 1860 – 24 September 1904) was a Danish-Faroese physician and scientist. In 1903, he was awarded the Nobel Prize in Medicine and Physiology "in recognition of his contribution to the treatment of diseases, especially lupus vulgaris, with concentrated light radiation, whereby he has opened a new avenue for medical science."

In 1882, Finsen moved to Copenhagen to study medicine at the University of Copenhagen, from which he graduated in 1890. Because he had studied in Iceland before moving to Copenhagen to study, he enjoyed privileged admission to Regensen, which is the most prestigious college dormitory in Denmark. Priotisation of Icelandic and Faroese individuals in the admission process was official Danish government policy that had been put in place in order to integrate the educated elites of its colonies with the university population in Copenhagen. Following graduation, he became a prosector of anatomy at the university. After three years, he quit the post to devote himself fully to his scientific studies. In 1898 Finsen was given a professorship and in 1899 he became a Knight of the Order of Dannebrog.

The Finsen Institute was founded in 1896, with Finsen serving as its first director. It was later merged into Copenhagen University Hospital and currently serves as a cancer research laboratory that specializes in proteolysis.

Finsen suffered from Niemann–Pick disease, which inspired him to sunbathe and investigate the effects of light on living things. As a result, Finsen is best known for his theory of phototherapy, in which certain wavelengths of light can have beneficial medical effects. His most notable writings were Finsen Om Lysets Indvirkninger paa Huden ("On the effects of light on the skin"), published in 1893 and Om Anvendelse i Medicinen af koncentrerede kemiske Lysstraaler ("The use of concentrated chemical light rays in medicine"), published in 1896. The papers were rapidly translated and published in both German and French. In his late work he researched the effects of sodium chloride, observing the results of a low sodium diet, which he published in 1904 as En Ophobning af Salt i Organismen ("An accumulation of salt in the organism").

Finsen won the Nobel Prize in Physiology in 1903 for his work on phototherapy. He was the first Scandinavian to win the prize and is the only Faroese Nobel Laureate to date. In 1904, Finsen was awarded the Cameron Prize for Therapeutics of the University of Edinburgh.

Stamps from Denmark and the Faroe Island depicting Niels Ryberg Finsen

Literature: Bjørnstjerne Bjørnson, Norwegian-French author and playwright

Bjørnstjerne Martinius Bjørnson (8 December 1832 – 26 April 1910) was a Norwegian writer who received the 1903 Nobel Prize in Literature "as a tribute to his noble, magnificent and versatile poetry, which has always been distinguished by both the freshness of its inspiration and the rare purity of its spirit", becoming the first Norwegian Nobel laureate. 

He was a prolific polemicist and extremely influential in Norwegian public life and Scandinavian cultural debate. Bjørnson is considered to be one of The Four Greats (De Fire Store) among Norwegian writers, the others being Henrik Ibsen, Jonas Lie, and Alexander Kielland. Bjørnson is also celebrated for his lyrics to the Norwegian National Anthem, "Ja, vi elsker dette landet". Composer Fredrikke Waaler based a composition for voice and piano (Spinnersken) on text by Bjørnson.

Norwegian stamps depicting Bjørnstjerne Bjørnson

Peace: Randal Cremer, English activist and politician

Sir William Randal Cremer (18 March 1828 – 22 July 1908) usually known by his middle name "Randal", was an English Liberal Member of Parliament, a pacifist, and a leading advocate for international arbitration. He was awarded the Nobel Peace Prize in 1903 for his work with the international arbitration movement.

From as early as his first unsuccessful run for Parliament in 1868, Cremer had advocated the expansion of international arbitration as peaceful alternative to war for the resolution of disputes.

He was elected as Liberal Member of Parliament (MP) for Haggerston in the Shoreditch district of Hackney from 1885 to 1895, and then from 1900 until his death from pneumonia in 1908.

Using his platform as an MP, Cremer cultivated allies on both continental Europe and across the Atlantic, including Frédéric Passy, William Jennings Bryan and Andrew Carnegie. Using his network of contacts and his talent for organisation, Cremer did much to create and expand institutions for international arbitration, which during his lifetime were successful in peacefully resolving numerous international disputes. This work includes co-founding the Inter-Parliamentary Union and the International Arbitration League; gaining acceptance for the 1897 Olney–Pauncefote Treaty between the United States and Britain that would have required arbitration of major disputes as the Essequibo territory (the treaty was rejected by the US Senate and never went into effect); and preparing the ground for the Hague peace conferences of 1899 and 1907.

In recognition of his work in the arbitration movement, Cremer won the Nobel Peace Prize, the first to do so solo, in 1903. Of the £8,000 award he donated £7,000 as an endowment for the International Arbitration League.

He also was named a Chevalier of the French Légion d'honneur, won the Norwegian Knighthood of Saint Olaf and was knighted in 1907.

Stamp issued by Guinea Bissau depicting Randal Cremer

June 24th in stamps John Cabot lands in North America, Strzelecki, Carl Diem

Here are some events that happened on June 24th. It could be an event or a person that died or was born on that day

1497 – John Cabot lands in North America at Newfoundland leading the first European exploration of the region since the Vikings.

John Cabot (Italian: Giovanni Caboto; c. 1450 – c. 1500) was an Italian navigator and explorer. His 1497 voyage to the coast of North America under the commission of Henry VII of England is the earliest-known European exploration of coastal North America since the Norse visits to Vinland in the eleventh century. To mark the celebration of the 500th anniversary of Cabot's expedition, both the Canadian and British governments elected Cape Bonavista, Newfoundland as representing Cabot's first landing site. However, alternative locations have also been proposed.

Canadian stamps depicting John Cabot

1797 Born: Paweł Edmund Strzelecki, Polish geologist and explorer (d. 1873)

Sir Paweł Edmund Strzelecki (24 June 1797 – 6 October 1873), also known as Paul Edmund de Strzelecki, was a Polish explorer and geologist who in 1845 also became a British subject. He is noted for his contributions to the exploration of Australia, particularly the Snowy Mountains and Tasmania as well as climbing and naming the highest mountain on the continent – Mount Kosciuszko (2,228 m)

Polish stamp depicting Strzelecki

1882 Born: Carl Diem, German businessman (d. 1962)

Carl Diem (born 24 June 1882, Würzburg – 17 December 1962, Cologne) was a German sports administrator, and as Secretary General of the Organizing Committee of the Berlin Olympic Games, the chief organizer of the 1936 Olympic Summer Games.

He created the tradition of the Olympic torch relay when he organized the 1936 build-up event, and was an influential historian of sport, particularly the Olympic games.

German stamp depicting Carl Diem

May 24th in stamps Copernicus, Queen Victoria, Brooklyn Bridge

Here are some events that happened on May 24th. It could be an event or a person that died or was born on that day

1543 Died: Nicolaus Copernicus, Polish mathematician and astronomer (b. 1473)

Nicolaus Copernicus (19 February 1473 – 24 May 1543) was a Renaissance-era mathematician, astronomer, and Catholic canon who formulated a model of the universe that placed the Sun rather than Earth at the center of the universe. In all likelihood, Copernicus developed his model independently of Aristarchus of Samos, an ancient Greek astronomer who had formulated such a model some eighteen centuries earlier.

The publication of Copernicus' model in his book De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres), just before his death in 1543, was a major event in the history of science, triggering the Copernican Revolution and making a pioneering contribution to the Scientific Revolution.

Copernicus was born and died in Royal Prussia, a region that had been part of the Kingdom of Poland since 1466. A polyglot and polymath, he obtained a doctorate in canon law and was a mathematician, astronomer, physician, classics scholar, translator, governor, diplomat, and economist. In 1517 he derived a quantity theory of money—a key concept in economics—and in 1519 he formulated an economic principle that later came to be called Gresham's law.

Stamps from Poland and General Gouvernement (occupied Poland) depicting Copernicus

1819 Born: Queen Victoria of the United Kingdom (d. 1901)

Victoria (Alexandrina Victoria; 24 May 1819 – 22 January 1901) was Queen of the United Kingdom of Great Britain and Ireland from 20 June 1837 until her death. She adopted the additional title of Empress of India on 1 May 1876. Known as the Victorian era, her reign of 63 years and seven months was longer than that of any of her predecessors. It was a period of industrial, cultural, political, scientific, and military change within the United Kingdom, and was marked by a great expansion of the British Empire.

Victoria was the daughter of Prince Edward, Duke of Kent and Strathearn (the fourth son of King George III), and Princess Victoria of Saxe-Coburg-Saalfeld. After both the Duke and his father died in 1820, she was raised under close supervision by her mother and her comptroller, John Conroy. She inherited the throne aged 18 after her father's three elder brothers died without surviving legitimate issue. Though a constitutional monarch, privately, Victoria attempted to influence government policy and ministerial appointments; publicly, she became a national icon who was identified with strict standards of personal morality.

Victoria married her cousin Prince Albert of Saxe-Coburg and Gotha in 1840. Their children married into royal and noble families across the continent, earning Victoria the sobriquet "the grandmother of Europe" and spreading haemophilia in European royalty. After Albert's death in 1861, Victoria plunged into deep mourning and avoided public appearances. As a result of her seclusion, republicanism in the United Kingdom temporarily gained strength, but in the latter half of her reign, her popularity recovered. Her Golden and Diamond Jubilees were times of public celebration. She died on the Isle of Wight in 1901. The last British monarch of the House of Hanover, she was succeeded by her son Edward VII of the House of Saxe-Coburg and Gotha.

Great Britain Penny Black stamps, the first stamps issued in the world

Stamp from India and Great Britain showing Empress Victoria 

1883 – The Brooklyn Bridge in New York City is opened to traffic after 14 years of construction.

John Augustus Roebling (born Johann August Röbling; June 12, 1806 – July 22, 1869) was a German-born American civil engineer. He designed and built wire rope suspension bridges, in particular the Brooklyn Bridge, which has been designated as a National Historic Landmark and a National Historic Civil Engineering Landmark.

The Brooklyn Bridge is a hybrid cable-stayed/suspension bridge in New York City, spanning the East River between the boroughs of Manhattan and Brooklyn. Opened on May 24, 1883, the Brooklyn Bridge was the first fixed crossing across the East River. It was also the longest suspension bridge in the world at the time, with a main span of 1,595.5 feet (486.3 m) and a deck height of 127 ft (38.7 m) above mean high water. The span was originally called the New York and Brooklyn Bridge or the East River Bridge but was officially renamed the Brooklyn Bridge in 1915.

Proposals for a bridge connecting Manhattan and Brooklyn were first made in the early 19th century, which eventually led to the construction of the current span, designed by John A. Roebling. His son Washington Roebling oversaw the construction and contributed further design work, assisted by the latter's wife, Emily Warren Roebling. While construction started in 1870, numerous controversies and the novelty of the designed construction process caused the actual construction to be prolonged over thirteen years. Since opening, the Brooklyn Bridge has undergone several reconfigurations, having carried horse-drawn vehicles and elevated railway lines until 1950. To alleviate increasing traffic flows, additional bridges and tunnels were built across the East River. Following gradual deterioration, the Brooklyn Bridge has been renovated several times, including in the 1950s, 1980s, and 2010s.

The Brooklyn Bridge is the southernmost of four toll-free vehicular bridges connecting Manhattan Island and Long Island, with the Manhattan, Williamsburg, and Queensboro bridges to the north. Only passenger vehicles and pedestrian and bicycle traffic are permitted. A major tourist attraction since its opening, the Brooklyn Bridge has become an icon of New York City. Over the years, the bridge has been used as the location of various stunts and performances, as well as several crimes and attacks. The Brooklyn Bridge has been designated a National Historic Landmark, a New York City landmark, and a National Historic Civil Engineering Landmark.

Stamps and First Day Cover issued in 2006 by Germany to commemorate John Augustus Roebling

US First Day Cover issued for the 100th year anniversary of the opening of the Brooklyn Bridge

February 19th in stamps Copernicus, Edison patents the phonograph, Multatuli, Élie Ducommun, Svante Arrhenius

Here are some events that happened on February 19th. It could be an event or a person that died or was born on that day

1473 Born: Nicolaus Copernicus, Polish mathematician and astronomer (d. 1543)

Nicolaus Copernicus (19 February 1473 – 24 May 1543) was a Renaissance-era mathematician, astronomer, and Catholic canon who formulated a model of the universe that placed the Sun rather than Earth at the center of the universe. In all likelihood, Copernicus developed his model independently of Aristarchus of Samos, an ancient Greek astronomer who had formulated such a model some eighteen centuries earlier.

The publication of Copernicus' model in his book De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres), just before his death in 1543, was a major event in the history of science, triggering the Copernican Revolution and making a pioneering contribution to the Scientific Revolution.

Copernicus was born and died in Royal Prussia, a region that had been part of the Kingdom of Poland since 1466. A polyglot and polymath, he obtained a doctorate in canon law and was a mathematician, astronomer, physician, classics scholar, translator, governor, diplomat, and economist. In 1517 he derived a quantity theory of money—a key concept in economics—and in 1519 he formulated an economic principle that later came to be called Gresham's law.

Stamps from Poland and General Gouvernement (occupied Poland) depicting Copernicus

1833 Born: Élie Ducommun, Swiss journalist and educator, Nobel Prize laureate (d. 1906)

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

1859 Born: Svante Arrhenius, Swedish physicist and chemist, Nobel Prize laureate (d. 1927)

Svante August Arrhenius (19 February 1859 – 2 October 1927) was a Swedish scientist. Originally a physicist, but often referred to as a chemist, Arrhenius was one of the founders of the science of physical chemistry. He received the Nobel Prize for Chemistry in 1903, becoming the first Swedish Nobel laureate. In 1905, he became director of the Nobel Institute, where he remained until his death.

Arrhenius was the first to use principles of physical chemistry to estimate the extent to which increases in atmospheric carbon dioxide are responsible for the Earth's increasing surface temperature. In the 1960s, Charles David Keeling demonstrated that the quantity of human-caused carbon dioxide emissions into the air is enough to cause global warming.

The Arrhenius equation, Arrhenius acid, Arrhenius base, lunar crater Arrhenius, Martian crater Arrhenius, the mountain of Arrheniusfjellet, and the Arrhenius Labs at Stockholm University were so named to commemorate his contributions to science.

Swedish stamps depicting Svante Arrhenius

1878 – Thomas Edison patents the phonograph.

Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman who has been described as America's greatest inventor. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrialized world. He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory.

Edison was raised in the American Midwest; early in his career he worked as a telegraph operator, which inspired some of his earliest inventions. In 1876, he established his first laboratory facility in Menlo Park, New Jersey, where many of his early inventions were developed. He later established a botanic laboratory in Fort Myers, Florida in collaboration with businessmen Henry Ford and Harvey S. Firestone, and a laboratory in West Orange, New Jersey that featured the world's first film studio, the Black Maria. He was a prolific inventor, holding 1,093 US patents in his name, as well as patents in other countries. Edison married twice and fathered six children. He died in 1931 of complications of diabetes.

US and Hungarian stamp featuring Edison and or his inventions

1887 Died: Multatuli, Dutch-German author and civil servant (b. 1820)

Eduard Douwes Dekker (2 March 1820 – 19 February 1887), better known by his pen name Multatuli (from Latin multa tulī, "I have suffered much"), was a Dutch writer best known for his satirical novel Max Havelaar (1860), which denounced the abuses of colonialism in the Dutch East Indies (today's Indonesia). He is considered one of the Netherlands' greatest authors.

Determined to expose the scandals he had witnessed during his years in the Dutch East Indies, Douwes Dekker began to write newspaper articles and pamphlets. Little notice was taken of these early publications until, in 1860, he published his satirical anticolonialist novel Max Havelaar: The Coffee Auctions of the Dutch Trading Company under the pseudonym Multatuli. Douwes Dekker's pen name is derived from the Latin phrase multa tuli, meaning "I have suffered much" (or more literally: "I have borne much"). It refers both to himself and to the victims of the injustices he saw.

Douwes Dekker was one of Sigmund Freud's favorite writers; his name heads a list of 'ten good books' that Freud drew up in 1907. Several other writers from different generations were appreciative of Multatuli, like Marx, Anatole France, Hermann Hesse, Willem Elsschot, Thomas and Heinrich Mann, and most of the first-wave feminists.

In June 2002, the Dutch Maatschappij der Nederlandse Letterkunde (Society of Dutch Literature) proclaimed Multatuli the most important Dutch writer of all time.
The annual Multatuli Prize, a Dutch literary prize, is named in his honor. The literary award Woutertje Pieterse Prijs is named after the character Woutertje Pieterse in Multatuli's De geschiedenis van Woutertje Pieterse.

The Mutatuli Museum is located in Amsterdam at Korsjespoortsteeg 20, where Eduard Douwes Dekker was born.

Stamp issued in the Netherlands depicting Multatuli