WEDNESDAY, June 25, 2025

1678-Venetian Elena Cornaro Piscopia is awarded a doctorate of philosophy from the University of Padua, the first 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-U.S. President Herbert Hoover authorizes building of Boulder Dam (Hoover Dam)

1947-First version of Anne Frank's diary "Het Achterhuis" published in The Netherlands

1950-North Korea invades South Korea, beginning the Korean War

1990-African National Congress leader Nelson Mandela meets with President George H. W. Bush at the White House

1981-Microsoft is restructured to become an incorporated business in its home state of Washington

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