June 15

Events763 BC - Assyrians record a solar eclipse that will be used to fix the chronology of Mesopotamian history. 923 - Battle of Soissons: King Robert I of France is killed and King Charles the Simple is arrested by the supporters of Duke Rudolph of Burgundy.1184 - King Magnus V of Norway is killed at the battle of Fimreite.1215 - King John of England puts his seal to the Magna Carta.1219 - Dannebrog - oldest national flag in the world - and flag of Denmark. According to legend, fell from the sky during the Battle of Lyndanisse (now Tallinn) in Estonia, and turned the Danes' luck.1246 - With the death of Duke Frederick II, the Babenberg dynasty ends in Austria.1389 - Battle of Kosovo: The Ottoman Empire defeats Serbs and Bosnians.1520 - Pope Leo X threatens to excommunicate Martin Luther in papal bull Exsurge Domine.1580 - Phillip II of Spain declares William the Silent to be an outlaw.1667 - The first human blood transfusion is administered by Dr. Jean-Baptiste Denys.1752 - Benjamin Franklin proves that lightning is electricity. 1775 - American Revolutionary War: George Washington is appointed commander-in-chief of the Continental Army.1776 - Delaware Separation Day - Delaware votes to suspend government under the British Crown and separate officially from Pennsylvania.1785 - Jean-François Pilâtre de Rozier, co-pilot of the first-ever manned flight (1783), and his companion, Pierre Romain, become the first-ever casualties of an air crash when their hot air balloon explodes during their attempt to cross the English Channel.1804 - New Hampshire approves the Twelfth Amendment to the United States Constitution, ratifying the document.1808 - Joseph Bonaparte becomes King of Spain.1836 - Arkansas is admitted as the 25th U.S. state.1844 - Charles Goodyear receives a patent for vulcanization, a process to strengthen rubber.1846 - The Oregon Treaty establishes the 49th parallel as the border between the United States and Canada, from the Rocky Mountains to the Strait of Juan de Fuca.1859 - Pig War: Ambiguity in the Oregon Treaty leads to the "Northwestern Boundary Dispute" between U.S. and British/Canadian settlers.1864 - American Civil War: Siege of Petersburg begins. 1864 - Arlington National Cemetery is established when 200 acres (0.8 km²) around Arlington Mansion are officially set aside as a military  cemetery by U.S. Secretary of War Edwin M. Stanton. 1877 - Henry Ossian Flipper becomes the first African American cadet to graduate from the United States Military Academy.1888 - Crown Prince Wilhelm becomes Kaiser Wilhelm II and is the last emperor of the German Empire1904 - A fire aboard the steamboat General Slocum in New York City's East River kills 1000. 1905 - Princess Margaret of Connaught marries Gustav, Crown Prince of Sweden.1909 - Representatives from England, Australia and South Africa meet at Lord's and form the Imperial Cricket Conference.1911 - Tabulating Computing Recording Corporation (IBM) is incorporated.1913 - The Battle of Bud Bagsak in the Philippine concludes.1916 - U.S. President Woodrow Wilson signs a bill incorporating the Boy Scouts of America, making them the only American youth organization with a federal charter.1919 - John Alcock and Arthur Brown complete first nonstop transatlantic flight at Clifden, County Galway, Ireland.1920 - Duluth lynchings in Minnesota1934 - The U.S.'s Great Smoky Mountains National Park is founded.1944 - World War II: Battle of Saipan: The United States invades Saipan.1944 - In the Saskatchewan general election, 1944, the CCF, led by Tommy Douglas, is elected and forms the first socialist government of North America.1945 - The General Dutch Youth League (ANJV) is founded in Amsterdam, Netherlands.1954 - UEFA (the Union des Associations Européennes de Football) is formed in Basle, Switzerland. 1955 - The Eisenhower administration stages the first annual "Operation Alert" (OPAL) exercise, an attempt to assess the USA's preparations for a nuclear attack.1962 - Students for a Democratic Society complete the Port Huron Statement.1978 -  King Hussein of Jordan weds American Lisa Halaby, who takes the name Queen Noor.1991 - Birth of the first federal political party in Canada that supports Quebec nationalism, the Bloc Québécois.1992 - The United States Supreme Court rules in US vs. Alvarez-Machain that it is permissible for the USA to suspects in foreign countries and bring them to the USA for trial, without approval from those other countries.1994 - Israel and Vatican City establish full diplomatic relations. 1996 - In Manchester, UK, a terrorist bomb injures over 200 people and devastates a large part of the city centre.2002 - Near earth asteroid 2002 MN misses our planet by 75,000 miles (120,000 km) about one third the distance to the moon 2007 - Bob Barker's final episode as host of The Price is Right airs.
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