September 17 events in history

456 Remistus, Roman general (magister militum), is besieged by a Gothic force at Ravenna and later executed in the Palace in Classis, outside the city
1111 Highest Galician nobility led by Pedro Fróilaz de Traba and the bishop Diego Gelmírez crown Alfonso VII as "King of Galicia"
1176 The Battle of Myriokephalon is fought between the Byzantine Empire and the Seljuk Turks
1462 The Battle of Świecino (also known as the Battle of Żarnowiec) is fought during Thirteen Years' War
1577 The Peace of Bergerac is signed between Henry III of France and the Huguenots
1630 The city of Boston, Massachusetts is founded
1631 Sweden wins a major victory at the Battle of Breitenfeld against the Holy Roman Empire during the Thirty Years' War
1683 Antonie van Leeuwenhoek writes a letter to the Royal Society describing "animalcules": the first known description of protozoa
1716 Jean Thurel enlists in the Touraine Regiment at the age of 18, the first day of a military career that would span for over 90 years
1761 The Battle of Kosabroma is fought
1775 American Revolutionary War: The Invasion of Canada begins with the Siege of Fort St. Jean
1776 The Presidio of San Francisco is founded in New Spain
1778 The Treaty of Fort Pitt is signed. It is the first formal treaty between the United States and a Native American tribe (the Lenape or Delaware Indians)
1787 The United States Constitution is signed in Philadelphia
1809 Peace between Sweden and Russia in the Finnish War. The territory to become Finland is ceded to Russia by the Treaty of Fredrikshamn
1814 Francis Scott Key finishes his poem "Defence of Fort McHenry", later to be the lyrics of "The Star-Spangled Banner"
1849 American abolitionist Harriet Tubman escapes from slavery
1859 Joshua A. Norton declares himself "Norton I, Emperor of the United States."
1862 American Civil War: George B. McClellan halts the northward drive of Robert E. Lee's Confederate army in the single-day Battle of Antietam, the bloodiest day in American military history
1862 American Civil War: The Allegheny Arsenal explosion results in the single largest civilian disaster during the war
1894 Battle of Yalu River, the largest naval engagement of the First Sino-Japanese War
1900 Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham at Mabitac
1908 The Wright Flyer flown by Orville Wright, with Lieutenant Thomas Selfridge as passenger, crashes, killing Selfridge. He becomes the first airplane fatality
1914 Andrew Fisher becomes Prime Minister of Australia for the third time
1916 World War I: Manfred von Richthofen ("The Red Baron"), a flying ace of the German Luftstreitkräfte, wins his first aerial combat near Cambrai, France
1924 The Border Defence Corps is established in the Second Polish Republic for the defence of the eastern border against armed Soviet raids and local bandits
1924 The Church of Central Africa, Presbyterian is formed
1930 The Ararat rebellion is suppressed
1932 A speech by Laureano Gómez leads to the escalation of the Leticia Incident
1939 World War II: The Soviet Union joins Nazi Germany's invasion of Poland during the Polish Defensive War of 1939
1939 World War II: A German U-boat U 29 sinks the British aircraft carrier HMS Courageous
1939 Taisto Mäki becomes the first man to run the 10,000 metres in under 30 minutes, in a time of 29:52.6
1940 World War II: Following the German defeat in the Battle of Britain, Hitler postpones Operation Sea Lion indefinitely
1941 World War II: A decree of the Soviet State Committee of Defense, restoring Vsevobuch in the face of the Great Patriotic War, is issued
1941 World War II: Soviet forces enter Teheran marking the end of the Anglo-Soviet invasion of Iran
1943 World War II: The Russian city of Bryansk is liberated from Germans
1944 World War II: Allied Airborne troops parachute into the Netherlands as the "Market" half of Operation Market Garden
1948 The Lehi (also known as the Stern gang) assassinates Count Folke Bernadotte, who was appointed by the United Nations to mediate between the Arab nations and Israel
1948 The Nizam of Hyderabad surrenders his sovereignty over the Hyderabad State and joins the Indian Union
1949 The Canadian steamship SS Noronic burns in Toronto Harbour with the loss of over 118 lives
1957 Malaysia joins the United Nations
1961 The world's first retractable-dome stadium, the Civic Arena, opens in Pittsburgh, Pennsylvania
1974 Bangladesh, Grenada and Guinea-Bissau join the United Nations
1976 The first Space Shuttle, Enterprise, is unveiled by NASA
1978 The Camp David Accords are signed by Israel and Egypt
1980 After weeks of strikes at the Lenin Shipyard in Gdańsk, Poland, the nationwide independent trade union Solidarity is established
1980 Former Nicaraguan President Anastasio Somoza Debayle is killed in Asunción, Paraguay
1983 Vanessa Williams becomes the first black Miss America
1987 Pope John Paul II embraces an AIDS-infected boy while visiting San Francisco
1991 Estonia, North Korea, South Korea, Latvia, Lithuania, the Marshall Islands and Micronesia join the United Nations