Wikipedia:Selected anniversaries/July 31

This is a list of selected July 31 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.

July 30 August 1
Staging area


Use only ONE image at a time


Blurb Reason
Feast day of Saint Ignatius of Loyola (Catholicism and Anglicanism) lots of {{cn}} tags (12)
1658 – Having defeated his brothers in a war of succession, Aurangzeb was crowned the sixth Mughal Emperor. lots of {{cn}} tags (17)
1930The Shadow, one of the most famous pulp heroes of the 20th century, debuted as the mysterious narrator of a radio program. refimprove
1991 – The Soviet Union and the United States signed the bilateral START I treaty, the largest and most complex arms control treaty in history, which eventually removed 80% of all strategic nuclear weapons then in existence. refimprove section
1999NASA's Lunar Prospector was deliberately crashed into the Shoemaker crater near the Moon's south pole in an unsuccessful attempt to detect the presence of water. refimprove


July 31: First day of Eid al-Adha (Islam, 2020); Lā Hae Hawaiʻi (Flag Day) and Lā Hoʻihoʻi Ea (Sovereignty Restoration Day) in Hawaii (1843)

More anniversaries: