Today in history 109

Here are some historical events that occurred on September 9th throughout history:

109: The Council of Piacenza is held, where Pope Urban II calls for the First Crusade.

1499: The Swiss Confederation is formed.

1529: The Siege of Vienna begins, as the Ottoman Empire attempts to capture the city.

1785: The first issue of the United States' first newspaper, The Pennsylvania Evening Post, is published.

1823: The Treaty of Ryswick is signed, ending the War of the Austrian Succession.

1850: The Compromise of 1850 is signed, admitting California to the United States as a free state and strengthening the Fugitive Slave Act.

1863: The Battle of Chantilly is fought during the American Civil War.

1886: The first commercial electric streetlights are installed in Wabash, Indiana.

1922: The British Broadcasting Corporation (BBC) is founded.

1936: The Spanish Civil War begins.

1956: The Soviet Union launches Sputnik 2, which carries the dog Laika into space.

1965: The first episode of the popular TV show "Star Trek" airs.

1986: The Soviet Union launches the Mir space station.

2005: The X-43A scramjet, a hypersonic aircraft, reaches a speed of Mach 9.6 (around 12,000 km/h or 7,500 mph).

2011: The United States ends its "don't ask, don't tell" policy, allowing openly gay and lesbian individuals to serve in the military.

These are just a few of the many historical events that have occurred on September 9th.