Wikipedia:Selected anniversaries/September 21
This is a list of selected September 21 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 21: Prinsjesdag in Netherlands (2010); International Day of Peace and Peace One Day; Independence Day in Malta (1964), Belize (1981) and Armenia (1991)
- 1792 – French Revolution: The National Convention voted to abolish the monarchy, and proclaimed the First Republic.
- 1898 – The Hundred Days' Reform in China was abruptly terminated when Empress Dowager Cixi (pictured) forced the reform-minded Guangxu Emperor into seclusion and took over the government as regent.
- 1937 – J. R. R. Tolkien's The Hobbit, a predecessor to The Lord of the Rings, was first published.
- 1939 – Romanian Prime Minister Armand Călinescu was assassinated in Bucharest by pro-Nazi members of the Iron Guard.
- 1942 – The prototype model of the Boeing B-29 Superfortress, a four-engine heavy bomber that became one of the largest aircraft to see service during World War II, flew for the first time.
- 1999 – A 7.6 Mw earthquake struck Jiji, Nantou County, Taiwan, killing 2,416 people, injuring over 11,000 others and causing about NT$300 billion in damage.