This is a list of selected March 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, featured list 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.
Use only ONE image at a time
Blurb | Reason |
---|---|
Benito Juárez Day in Mexico; | unreferenced section (Ancestry), refimprove section |
World Poetry Day | stub |
World Down Syndrome Day | needs more footnotes and cleanup |
; Mother's Day in the Arab world | refimprove sections |
Independence Day in Namibia ( 1990); | outdated |
630 – Byzantine emperor Heraclius restored the True Cross to Jerusalem. | lots of CN tags (6) and a lot of other sentences that should be so tagged |
1800 – After being elected as a compromise candidate after several months of stalemate, Pope Pius VII was crowned in Venice with a temporary papal tiara made of papier-mâché. | refimprove |
1801 – French Revolutionary Wars: The Battle of Alexandria was fought between British and French forces near the ruins of Nicopolis in Egypt. | refimprove section |
1804 – The Napoleonic Code, the French civil code established under Napoleon, entered into force, eventually strongly influencing the law of many other countries. | unreferenced section, refimprove sections |
1871 – Otto von Bismarck, the founder of the German Empire, was proclaimed as its first chancellor. | lots of CN tags (11), especially in one section |
1937 – Pope Pius XII's encyclical Mit brennender Sorge, condemning antisemitism and criticizing Nazism, was read from the pulpits of all Catholic churches in Germany. | Too many block quotes |
1943 – World War II: Wehrmacht officer Rudolf-Christoph von Gersdorff attempted to assassinate Adolf Hitler by suicide bombing, but had to abort the plan at the last minute. | needs more footnotes |
1945 – World War II: Bulgaria and the Soviet Union successfully defended the north bank of the Drava River as the Battle of the Transdanubian Hills concluded. | refimprove section |
1983 – In the West Bank, a number of Palestinian girls complained of breathing difficulties due to strange odors, leading to accusations of poison gas. | refimprove section |
1989 – An article in Sports Illustrated alleged that Pete Rose, the manager of the Major League Baseball team Cincinnati Reds, was involved in gambling. | unreferenced sections |
2006 – A man smashed the statue of Phra Phrom at the Erawan Shrine in Bangkok, Thailand, with a hammer, and was subsequently beaten to death by bystanders. | Tagged for referencing |
2006 – The first message on the social media site Twitter was sent by Jack Dorsey. | Multiple banner issues |
March 21: Fast of Esther (Judaism, 2024); Oltenia Day in Romania