June 28th in stamps Jean-Jacques Rousseau, James Madison, Coronation of Queen Victoria

Here are some events that happened on June 28th. It could be an event or a person that died or was born on that day

1712 Born: Jean-Jacques Rousseau, Swiss philosopher and polymath (d. 1778)

Jean-Jacques Rousseau (28 June 1712 – 2 July 1778) was a Genevan philosopher, writer, and composer. His political philosophy influenced the progress of the Enlightenment throughout Europe, as well as aspects of the French Revolution and the development of modern political, economic, and educational thought.

His Discourse on Inequality and The Social Contract are cornerstones in modern political and social thought. Rousseau's sentimental novel Julie, or the New Heloise (1761) was important to the development of preromanticism and romanticism in fiction. His Emile, or On Education (1762) is an educational treatise on the place of the individual in society. Rousseau's autobiographical writings—the posthumously published Confessions (composed in 1769), which initiated the modern autobiography, and the unfinished Reveries of the Solitary Walker (composed 1776–1778)—exemplified the late-18th-century "Age of Sensibility", and featured an increased focus on subjectivity and introspection that later characterized modern writing.

Rousseau befriended fellow philosopher Denis Diderot in 1742, and would later write about Diderot's romantic troubles in his Confessions. During the period of the French Revolution, Rousseau was the most popular of the philosophers among members of the Jacobin Club. He was interred as a national hero in the Panthéon in Paris, in 1794, 16 years after his death.

Swiss and Russian stamps depicting Jean-Jacques Rousseau

1836 Died: James Madison, American academic and politician, 4th President of the United States (b. 1751)

James Madison Jr. (March 16, 1751 – June 28, 1836) was an American statesman, lawyer, diplomat, philosopher and Founding Father who served as the fourth president of the United States from 1809 to 1817. He is hailed as the "Father of the Constitution" for his pivotal role in drafting and promoting the Constitution of the United States and the United States Bill of Rights. He co-wrote The Federalist Papers, co-founded the Democratic-Republican Party, and served as the fifth United States secretary of State from 1801 to 1809.

Born into a prominent Virginia planter family, Madison served as a member of the Virginia House of Delegates and the Continental Congress during and after the American Revolutionary War. He became dissatisfied with the weak national government established by the Articles of Confederation and helped organize the Constitutional Convention, which produced a new constitution to supplant the Articles of Confederation. Madison's Virginia Plan served as the basis for the Constitutional Convention's deliberations, and he was one of the most influential individuals at the convention. Madison became one of the leaders in the movement to ratify the Constitution, and he joined with Alexander Hamilton and John Jay in writing The Federalist Papers, a series of pro-ratification essays that was one of the most influential works of political science in American history.

After the ratification of the Constitution, Madison emerged as an important leader in the United States House of Representatives and served as a close adviser to President George Washington. He was the main force behind the ratification of the United States Bill of Rights, which enshrines guarantees of personal freedoms and rights within the Constitution. During the early 1790s, Madison came to oppose the economic program and accompanying centralization of power favored by Secretary of the Treasury Alexander Hamilton. Along with Thomas Jefferson, Madison organized the Democratic-Republican Party, which was, alongside Hamilton's Federalist Party, one of the nation's first major political parties. After Jefferson won the 1800 presidential election, Madison served as secretary of State from 1801 to 1809. In that position, he supervised the Louisiana Purchase, which doubled the size of the United States.

Madison succeeded Jefferson with a victory in the 1808 presidential election. After diplomatic protests and a trade embargo failed to end British attacks against American shipping, he led the United States into the War of 1812. The war was an administrative morass and ended inconclusively, but many Americans saw it as a successful "second war of independence" against Britain. The war convinced Madison of the necessity of a stronger federal government, and he presided over the creation of the Second Bank of the United States and the enactment of the protective Tariff of 1816. He retired from public office in 1817 and died in 1836. Madison is considered to be one of the most important Founding Fathers of the United States, and historians have generally ranked him as an above-average president.

US stamps depicting Madison

1838 – Coronation of Queen Victoria of the United Kingdom.

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 

June 27th in stamps Republic of Ragusa, Giorgio Vasari, Sophie Germain

Here are some events that happened on June 27th. It could be an event or a person that died or was born on that day

1358 – The Republic of Ragusa is founded.

The Republic of Ragusa (Latin: Respublica Ragusina; Italian: Repubblica di Ragusa; Croatian: Dubrovačka Republika, lit. 'Dubrovnik Republic'; Venetian: Repùblega de Raguxa) was an aristocratic maritime republic centered on the city of Dubrovnik (Ragusa in Italian, German and Latin; Raguxa in Venetian) in Dalmatia (today in southernmost Croatia) that carried that name from 1358 until 1808. It reached its commercial peak in the 15th and the 16th centuries, before being conquered by Napoleon's French Empire and formally annexed by the Napoleonic Kingdom of Italy in 1808. It had a population of about 30,000 people, of whom 5,000 lived within the city walls. Its motto was "Non bene pro toto libertas venditur auro", which means "Liberty is not sold for all the gold in the world"

Stamps from Croatia commemorating Dubrovnik

1574 Died: Giorgio Vasari, Italian historian, painter, and architect (b. 1511)

Giorgio Vasari (30 July 1511 – 27 June 1574) was an Italian painter, architect, engineer, writer, and historian, best known for his Lives of the Most Excellent Painters, Sculptors, and Architects, considered the ideological foundation of art-historical writing, and basis for biographies of several Renaissance artists including Leonardo da Vinci. Vasari designed the Tomb of Michelangelo in the Basilica of Santa Croce, Florence that was completed in 1578. Based on Vasari's text about Giotto's new manner of painting, Jules Michelet suggested for the first time the term Renaissance in his Histoire de France (1835), a term adopted by historiography and still in use today.

Aside from his career as a painter, Vasari was also successful as an architect. His loggia of the Palazzo degli Uffizi by the Arno opens up the vista at the far end of its long narrow courtyard. It is a unique piece of urban planning that functions as a public piazza, and which, if considered as a short street, is unique as a Renaissance street with a unified architectural treatment. The view of the Loggia from the Arno reveals that, with the Vasari Corridor, it is one of very few structures that line the river which are open to the river itself and appear to embrace the riverside environment.

In Florence, Vasari also built the long passage, now called Vasari Corridor, which connects the Uffizi with the Palazzo Pitti on the other side of the river. The enclosed corridor passes alongside the River Arno on an arcade, crosses the Ponte Vecchio and winds around the exterior of several buildings. It was once the home of the Mercado de Vecchio.

He also renovated the medieval churches of Santa Maria Novella and Santa Croce. At both he removed the original rood screen and loft, and remodeled the retro-choirs in the Mannerist taste of his time. In Santa Croce, he was responsible for the painting of The Adoration of the Magi which was commissioned by Pope Pius V in 1566 and completed in February 1567. It was recently restored, before being put on exhibition in 2011 in Rome and in Naples. Eventually it is planned to return it to the church of Santa Croce in Bosco Marengo (Province of Alessandria, Piedmont).

In 1562 Vasari built the octagonal dome on the Basilica of Our Lady of Humility in Pistoia, an important example of high Renaissance architecture.

In Rome, Vasari worked with Giacomo Barozzi da Vignola and Bartolomeo Ammannati at Pope Julius III's Villa Giulia.

Italian stamp commemorating Vasari's architectural work

1831 Died: Sophie Germain, French mathematician and physicist (b. 1776)

Marie-Sophie Germain (1 April 1776 – 27 June 1831) was a French mathematician, physicist, and philosopher. Despite initial opposition from her parents and difficulties presented by society, she gained education from books in her father's library, including ones by Leonhard Euler, and from correspondence with famous mathematicians such as Lagrange, Legendre, and Gauss (under the pseudonym of «Monsieur LeBlanc»). One of the pioneers of elasticity theory, she won the grand prize from the Paris Academy of Sciences for her essay on the subject. Her work on Fermat's Last Theorem provided a foundation for mathematicians exploring the subject for hundreds of years after. Because of prejudice against her sex, she was unable to make a career out of mathematics, but she worked independently throughout her life. Before her death, Gauss had recommended that she be awarded an honorary degree, but that never occurred. On 27 June 1831, she died from breast cancer. At the centenary of her life, a street and a girls’ school were named after her. The Academy of Sciences established the Sophie Germain Prize in her honor

French stamp depicting Sophie Germain

June 26th in stamps Francisco Pizarro is assassinated, Albert I, Prince of Monaco, Peter Rosegger

Here are some events that happened on June 26th. It could be an event or a person that died or was born on that day

1541 – Francisco Pizarro is assassinated in Lima by the son of his former companion and later antagonist, Diego de Almagro the younger. Almagro is later caught and executed.

Francisco Pizarro González (c.1471–1476 – 26 June 1541) was a Spanish conquistador, best known for his expeditions that led to the Spanish conquest of Peru.

Born in Trujillo, Spain to a poor family, Pizarro chose to pursue fortune and adventure in the New World. He went to the Gulf of Urabá, and accompanied Vasco Núñez de Balboa in his crossing of the Isthmus of Panama, where they became the first Europeans to reach the Pacific Ocean. He served as mayor of the newly founded Panama City for a few years, and undertook two failed expeditions to Peru. In 1529, Pizarro obtained permission from the Spanish crown to lead a campaign to conquer Peru and went on his third, and successful, expedition.

When local people who lived along the coast resisted this invasion, Pizarro moved inland and founded the first Spanish settlement in Peru, San Miguel de Piura. After a series of maneuvres, Pizarro captured the Incan emperor Atahualpa at the Battle of Cajamarca in November 1532. A ransom for the emperor's release was demanded and Atahualpa filled a room with gold, but Pizarro charged him with various crimes and executed him in July 1533. The same year, Pizarro entered the Inca capital of Cuzco and completed his conquest of Peru. In January 1535, Pizarro founded the city of Lima.

Stamps from Peru depicting Pizarro 

1918 Died: Peter Rosegger, Austrian poet and author (b. 1843)

Peter Rosegger (original Roßegger ) (31 July 1843 – 26 June 1918) was an Austrian writer and poet from Krieglach in the province of Styria. He was a son of a mountain farmer and grew up in the woodlands and mountains of Alpl. Rosegger (or Rossegger) went on to become a most prolific poet and author as well as an insightful teacher and visionary.

In his later years, he was honored by officials from various Austrian universities and the city of Graz (the capital of Styria). He was nominated for the Nobel Prize in Literature three times. He was nearly awarded the Nobel Prize in 1913 and is (at least among the people of Styria) something like a national treasure to this day.

1922 Died: Albert I, Prince of Monaco (b. 1848)

Albert I (13 November 1848 – 26 June 1922) was Prince of Monaco and Duke of Valentinois from 10 September 1889 until his death. He devoted much of his life to oceanography. Alongside his expeditions, Albert I made reforms on political, economic and social levels, bestowing a constitution on the Principality in 1911.

Prince Albert I of Monaco devoted much of his life to the study of the sea and oceans. At 22 years old, he embarked on a career in the then relatively new science of oceanography. Understanding the importance of the relationship between living creatures and their environment, he devised a number of techniques and instruments for measurement and exploration. Albert I was also the “instigator and promulgator” of the oceanographic science he contributed to create. He founded the Oceanographic Institute Foundation Albert I, Prince of Monaco is a private foundation recognized of public utility, established in 1906. It has two buildings: The Oceanographic Institute of Paris, now renamed Ocean House, and what became the world-renowned Oceanographic Museum of Monaco. This includes an aquarium, a museum, and a library, with research facilities in Paris.

He owned four, increasingly impressive research yachts, Hirondelle, Princesse Alice, Princesse Alice II and Hirondelle II. Accompanied by some of the world's leading marine scientists, he travelled the length and breadth of the Mediterranean, making numerous oceanographic studies, maps and charts. In 1896, on an oceanographic survey of the Azores, he discovered the Princess Alice Bank.

Stamps from Monaco depicting Albert I 

June 25th in stamps Virginia statehood, Antoni Gaudí, The Diary of Anne Frank is published

Here are some events that happened on June 25th. It could be an event or a person that died or was born on that day

1788 – Virginia becomes the tenth state to ratify the United States Constitution.

Virginia (/vərˈdʒɪniə/ (About this soundlisten)), officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population as of 2020 is over 8.65 million, with 36% of them living in the Baltimore–Washington metropolitan area.

The area's history begins with several indigenous groups, including the Powhatan. In 1607 the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the early growth of the colony's plantation economy, but also fueled conflicts both inside and outside the colony. Virginia was one of the Thirteen Colonies in the American Revolution. Virginia was split by the American Civil War, when the state government in Richmond joined the Confederacy, which made that city its capital, but many counties remained loyal to the Union, and formed West Virginia. Although the Commonwealth was under one-party rule for nearly a century following Reconstruction, both major national parties are competitive in modern Virginia.

Virginia's state legislature is the Virginia General Assembly, which was established in 1619 and is the oldest continuous law-making body in North America. It is made up of a 40-member Senate and a 100-member House of Delegates. The state government is unique in how it treats cities and counties equally, manages local roads, and prohibits governors from serving consecutive terms. Virginia's economy has many sectors: agriculture in the Shenandoah Valley; high tech and federal agencies, including the headquarters of the U.S. Department of Defense and Central Intelligence Agency, in Northern Virginia; and military facilities in Hampton Roads, the site of the region's main seaport.

US stamp issued to commemorate Virginia's statehood

1852 Born: Antoni Gaudí, Spanish architect, designed the Park Güell (d. 1926)

Antoni Gaudí i Cornet (25 June 1852 – 10 June 1926) was a Catalan architect known as the greatest exponent of Catalan Modernism. Gaudí's works have a highly individualized, one-of-a-kind style. Most are located in Barcelona, including his main work, the church of the Sagrada Família.

Gaudí's work was influenced by his passions in life: architecture, nature, and religion. He considered every detail of his creations and integrated into his architecture such crafts as ceramics, stained glass, wrought ironwork forging and carpentry. He also introduced new techniques in the treatment of materials, such as trencadís which used waste ceramic pieces.

Under the influence of neo-Gothic art and Oriental techniques, Gaudí became part of the Modernista movement which was reaching its peak in the late 19th and early 20th centuries. His work transcended mainstream Modernisme, culminating in an organic style inspired by natural forms. Gaudí rarely drew detailed plans of his works, instead preferring to create them as three-dimensional scale models and moulding the details as he conceived them.

Gaudí's work enjoys global popularity and continuing admiration and study by architects. His masterpiece, the still-incomplete Sagrada Família, is the most-visited monument in Spain. Between 1984 and 2005, seven of his works were declared World Heritage Sites by UNESCO. Gaudí's Roman Catholic faith intensified during his life and religious images appear in many of his works. This earned him the nickname "God's Architect" and led to calls for his beatification.

Spanish stamps depicting Gaudi's works

1947 – The Diary of a Young Girl (better known as The Diary of Anne Frank) is published.

During World War II, Anne Frank hid from Nazi persecution with her family and four other people in hidden rooms at the rear of the 17th-century canal house, known as the Secret Annex (Dutch: Achterhuis). Anne Frank did not survive the war but in 1947, her wartime diary was published. In 1957, the Anne Frank Foundation was established to protect the property from developers who wanted to demolish the block.

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

June 23rd in stamps Banff National Park, Edward VIII, Estonian War of Independence

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

1887 – The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.

Banff National Park is Canada's oldest national park, established in 1885. Located in Alberta's Rocky Mountains, 110–180 kilometres (68–112 mi) west of Calgary, Banff encompasses 6,641 square kilometres (2,564 sq mi) of mountainous terrain, with many glaciers and ice fields, dense coniferous forest, and alpine landscapes. The Icefields Parkway extends from Lake Louise, connecting to Jasper National Park in the north. Provincial forests and Yoho National Park are neighbours to the west, while Kootenay National Park is located to the south and Kananaskis Country to the southeast. The main commercial centre of the park is the town of Banff, in the Bow River valley.

The Canadian Pacific Railway was instrumental in Banff's early years, building the Banff Springs Hotel and Chateau Lake Louise, and attracting tourists through extensive advertising. In the early 20th century, roads were built in Banff, at times by war internees from World War I, and through Great Depression-era public works projects. Since the 1960s, park accommodations have been open all year, with annual tourism visits to Banff increasing to over 5 million in the 1990s. Millions more pass through the park on the Trans-Canada Highway. As Banff has over three million visitors annually, the health of its ecosystem has been threatened. In the mid-1990s, Parks Canada responded by initiating a two-year study which resulted in management recommendations and new policies that aim to preserve ecological integrity.

Banff National Park has a subarctic climate with three ecoregions, including montane, subalpine, and alpine. The forests are dominated by Lodgepole pine at lower elevations and Engelmann spruce in higher ones below the treeline, above which is primarily rocks and ice. Mammal species such as the grizzly bear, cougar, wolverine, elk, bighorn sheep and moose are found, along with hundreds of bird species. Reptiles and amphibians are also found but only a limited number of species have been recorded. The mountains are formed from sedimentary rocks which were pushed east over newer rock strata, between 80 and 55 million years ago. Over the past few million years, glaciers have at times covered most of the park, but today are found only on the mountain slopes though they include the Columbia Icefield, the largest uninterrupted glacial mass in the Rockies. Erosion from water and ice have carved the mountains into their current shapes.

Canadian stamp commemorating Banff National Park

1894 Born: Edward VIII, King of the United Kingdom (d. 1972)

Edward VIII (Edward Albert Christian George Andrew Patrick David; 23 June 1894 – 28 May 1972) was King of the United Kingdom and the Dominions of the British Empire and Emperor of India from 20 January 1936 until his abdication in December of the same year.

Edward was born during the reign of his great-grandmother Queen Victoria as the eldest child of the Duke and Duchess of York, later King George V and Queen Mary. He was created Prince of Wales on his 16th birthday, seven weeks after his father succeeded as king. As a young man, Edward served in the British Army during the First World War and undertook several overseas tours on behalf of his father. While Prince of Wales, he engaged in a series of sexual affairs that worried both his father and then-British prime minister Stanley Baldwin.

Edward became king on his father's death. As king, he showed impatience with court protocol, and caused concern among politicians by his apparent disregard for established constitutional conventions. Only months into his reign, a constitutional crisis was caused by his proposal to marry Wallis Simpson, an American who had divorced her first husband and was seeking a divorce from her second. The prime ministers of the United Kingdom and the Dominions opposed the marriage, arguing a divorced woman with two living ex-husbands was politically and socially unacceptable as a prospective queen consort. Additionally, such a marriage would have conflicted with Edward's status as titular head of the Church of England, which, at the time, disapproved of remarriage after divorce if a former spouse was still alive. Edward knew the Baldwin government would resign if the marriage went ahead, which could have forced a general election and would have ruined his status as a politically neutral constitutional monarch. When it became apparent he could not marry Wallis and remain on the throne, he abdicated. He was succeeded by his younger brother, George VI. With a reign of 326 days, Edward is the shortest-reigning monarch of the United Kingdom.

After his abdication, Edward was created Duke of Windsor. He married Wallis in France on 3 June 1937, after her second divorce became final. Later that year, the couple toured Nazi Germany. During the Second World War, Edward was at first stationed with the British Military Mission to France, but after private accusations that he was a Nazi sympathizer, he was appointed Governor of the Bahamas. After the war, Edward spent the rest of his life in France. He and Wallis remained married until his death in 1972. Wallis died 14 years later.

Great Britain stamps depicting Edward VIII

1919 – Estonian War of Independence: The decisive defeat of the Baltische Landeswehr in the Battle of Cēsis; this date is celebrated as Victory Day in Estonia.

The Estonian War of Independence (Estonian: Vabadussõda, literally "Freedom War"), also known as the Estonian Liberation War, was a defensive campaign of the Estonian Army and its allies, most notably the White Russian Northwestern Army, Latvia, and the United Kingdom, against the Soviet Western Front offensive and the aggression of the Baltische Landeswehr. It was fought in connection with the Russian Civil War during 1918–1920. The campaign was the struggle of Estonia for its sovereignty in the aftermath of World War I. It resulted in a victory for the newly established state and was concluded in the Treaty of Tartu.

First stamps issued by Estonia

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

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

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

June 21st in stamps Bertha von Suttner, Sukarno

 Here are some events that happened on June 21st. It could be an event or a person that died or was born on that day

1914 Died: 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

1970 Died: Sukarno, Indonesian engineer and politician, 1st President of Indonesia (b. 1901)

Sukarno (born Kusno Sosrodihardjo; 6 June 1901 – 21 June 1970) was an Indonesian politician who was the first president of Indonesia, serving from 1945 to 1967.

Sukarno was the leader of the Indonesian struggle for independence from the Dutch Empire. He was a prominent leader of Indonesia's nationalist movement during the Dutch colonial period and spent over a decade under Dutch detention until released by the invading Japanese forces in World War II. Sukarno and his fellow nationalists collaborated to garner support for the Japanese war effort from the population, in exchange for Japanese aid in spreading nationalist ideas. Upon Japanese surrender, Sukarno and Mohammad Hatta declared Indonesian independence on 17 August 1945, and Sukarno was appointed as its president. He led Indonesians in resisting Dutch re-colonisation efforts via diplomatic and military means until the Dutch recognition of Indonesian independence in 1949. Author Pramoedya Ananta Toer once wrote, "Sukarno was the only Asian leader of the modern era able to unify people of such differing ethnic, cultural and religious backgrounds without shedding a drop of blood." 

After a chaotic period of parliamentary democracy, Sukarno established an autocratic system called "Guided Democracy" in 1959 that successfully ended the instability and rebellions which were threatening the survival of the diverse and fractious country. The early 1960s saw Sukarno veering Indonesia to the left by providing support and protection to the Communist Party of Indonesia (PKI) to the irritation of the military and Islamists. He also embarked on a series of aggressive foreign policies under the rubric of anti-imperialism, with aid from the Soviet Union and China. The failure of the 30 September Movement in 1965 led to the destruction of the PKI with executions of its members and sympathisers in several massacres, with an estimated 500,000 to 1,000,000 dead.  He was replaced in 1967 by one of his generals, Suharto, and remained under house arrest until his death in 1970.

Indonesian stamps depicting Sukarno