Wikipedia:Selected anniversaries/September 11
This is a list of selected September 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.
September 11: New Year's Day in the Coptic and the Ethiopian calendars; Patriot Day in the United States; National Day of Catalonia; Teachers' Day in parts of Latin America
- 1297 – First War of Scottish Independence: The Scots defeated English troops at the Battle of Stirling Bridge on the River Forth (pictured) near Stirling.
- 1709 – An allied British-Dutch-Austrian force defeated the French at the Battle of Malplaquet, one of the bloodiest battles of the War of the Spanish Succession.
- 1789 – U.S. Founding Father Alexander Hamilton, co-writer of the Federalist Papers, became the first U.S. Secretary of the Treasury.
- 1857 – At Mountain Meadows, Utah Territory, USA, a local brigade of the Mormon militia led a massacre of about 120 California-bound pioneers from Arkansas.
- 2001 – September 11 attacks: Al-Qaeda terrorists hijacked four passenger airliners, intentionally crashing two of them into the World Trade Center in New York City and one plane into the Pentagon near Washington, D.C. The fourth aircraft crashed in Pennsylvania after its passengers mounted an assault against their hijackers.