1678: Venetian Elena Cornaro Piscopia is awarded a doctorate of philosophy from the University of Padua, 1st woman to receive a university doctoral degree or PhD

1876: Battle of the Little Bighorn: US 7th Cavalry under Brevet Major General George Armstrong Custer wiped out by Sioux and Cheyenne warriors led by Chiefs Crazy Horse and Sitting Bull in what has become famously known as “Custer’s Last Stand”

1929: US President Herbert Hoover authorizes building of Boulder Dam (Hoover Dam)

1950: north korea invades South Korea, beginning the Korean War

2021: WHO head Tedros Adhanom Ghebreyesus confirms the COVID-19 Delta variant is the most transmissible to date, now present in 85 countries and spreading rapidly

Source: Onthisday.com