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This is a list of selected April 4 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.

April 3 April 5
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Ineligible

Blurb Reason
Independence Day in Senegal (1960) refimprove section
Qingming Festival in the Chinese calendar refimprove
Children's Day in Hong Kong and Taiwan; refimprove section
1460 – The University of Basel was opened as Switzerland's first university. refimprove section
1660Charles II of England issued the Declaration of Breda, describing his conditions for the Restoration of the crown of England. refimprove section
1768Philip Astley set up the first modern amphitheatre for the display of horse riding tricks in Lambeth, London, the origin of the modern circus. Astley: refimprove sections; Circus: refimprove section
1796 – French naturalist Georges Cuvier delivered a lecture at the National Museum of Natural History on living and fossil remains of elephants and related species, founding the science of paleontology. reimprove sections
1814Napoleon abdicated as Emperor of the French and named his son Napoleon II to replace him. refimprove section
1866 – Russian tsar Alexander II narrowly survived an assassination attempt by Dmitry Karakozov. "Lede too short" banner, many citation needed tags
1945World War II: The U.S. Third Army captured the German city of Kassel after three days of fighting. refimprove section
1969 – Surgeons Denton Cooley and Domingo Liotta implanted the first total artificial heart. reimprove section
1973 – A C-141, dubbed the Hanoi Taxi, flew the last mission of Operation Homecoming to return American prisoners of war from Vietnam. refimprove
1979 – Deposed Pakistani prime minister Zulfikar Ali Bhutto was controversially executed for authorising the murder of a political opponent. lots of CN tags (21)
1990 – The current flag of Hong Kong was adopted for post-colonial use during the Third Session of the Seventh National People's Congress. off topic
2002 – The Angolan government and UNITA rebels signed a memorandum of understanding, agreeing to observe the 1994 Lusaka Protocol and ending the 26-year-long Angolan Civil War. refimprove section

Eligible

Notes

April 4: Hansik in Korea (2024); Qingming Festival (traditional Chinese, 2024)

Alexios I Komnenos
Alexios I Komnenos
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