Wikipedia:Selected anniversaries/December 9
This is a list of selected December 9 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.
December 9: Hanukkah ends at sunset (Judaism, 2010); Independence Day in Tanzania (1961); Army Day in Peru
- 1425 – Pope Martin V issued a papal bull establishing what later became the Catholic University of Leuven, the largest, oldest and most prominent university in Belgium.
- 1824 – Forces led by General Antonio José de Sucre (pictured) defeated a Royalist army in the Battle of Ayacucho, ending the Peruvian War of Independence.
- 1872 – P. B. S. Pinchback took office as Governor of Louisiana, the first African American governor of a U.S. state.
- 1946 – The Doctors' Trial, the first of the Subsequent Nuremberg Trials, began to prosecute doctors who were allegedly involved in Nazi human experimentation during World War II.
- 1979 – A World Health Organization commission of scientists certified the global eradication of smallpox, making it the only human infectious disease to date to have been completely eradicated from nature.