Wikipedia:Selected anniversaries/May 11
This is a list of selected May 11 anniversaries that appear in the "On this day" section of the Main Page. To suggest a new item, in most cases, you can be bold and edit this page. Please read the selected anniversaries guidelines before making your edit. However, if your addition might be controversial or on a day that is or will soon be on the Main Page, please post your suggestion on the talk page instead.
Please note that the events listed on the Main Page are chosen based more on relative article quality and to maintain a mix of topics, not based solely on how important or significant their subjects are. Only four to five events are posted at a time and thus not everything that is "most important and significant" can be listed. In addition, an event is generally not posted this year if it is also the subject of the scheduled featured article or picture of the day.
To report an error when this appears on the Main Page, see Main Page errors. Please remember that this list defers to the supporting articles, so it is best to achieve consensus and make any necessary changes there first.
May 11: Pentecost in Western Christianity (2008);
- 1745 – War of the Austrian Succession: French forces defeated the Anglo-Dutch-Hanoverian "Pragmatic Army" at the Battle of Fontenoy in the Austrian Netherlands in present day Belgium.
- 1792 – Merchant sea-captain Robert Gray (pictured) first entered the Columbia River, the largest river flowing into the Pacific Ocean from North America.
- 1812 – British Prime Minister Spencer Perceval was assassinated by John Bellingham in the lobby of the House of Commons.
- 1867 – The major powers in Europe signed the Second Treaty of London to solve the Luxembourg Crisis between France and Prussia over the political status of Luxembourg.
- 1918 – The Mountainous Republic of the Northern Caucasus was established, with Tapa Tchermoeff as the first prime minister.
- 1949 – Siam was officially renamed Thailand, a name unofficially in use since it was first coined by Prime Minister and dictator Plaek Pibulsonggram in 1939.