Wikipedia:Selected anniversaries/November 21
This is a list of selected November 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.
November 21: World Hello Day; World Television Day; Armed Forces Day in Bangladesh
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- 1783 – The first successful untethered flight by humans in a hot air balloon was made by Jean-François Pilâtre de Rozier and François Laurent d'Arlandes in Paris.
- 1920 – Irish War of Independence: On Bloody Sunday in Dublin, the Irish Republican Army killed more than a dozen British intelligence officers known as the Cairo Gang, and the Auxiliaries of the Royal Irish Constabulary opened fire on players and spectators at a Gaelic football match in Croke Park.
- 1964 – The Verrazano-Narrows Bridge (pictured), a suspension bridge connecting Staten Island and Brooklyn in New York City at the Narrows, opened to traffic, becoming the largest suspension bridge in the world at the time.
- 1974 – Explosives placed in two central pubs in Birmingham, England, killed 21 people and injured 182 others, and eventually led to the arrest and imprisonment of six people who became known as the Birmingham Six.
- 1977 – "God Defend New Zealand" became New Zealand's second national anthem, on equal standing with "God Save the Queen", which had been the traditional one since 1840.