2025-06-23

Citizens of the United Kingdom voted in favour of leaving the European Union.

Croatian War of Independence: The Battle of the Miljevci Plateau ended after a failed counterattack by forces of the Republic of Serbian Krajina against the Croatian Army who had captured the plateau.

The first instalment of the video-game series Sonic the Hedgehog was released in North America.

Chinese American Vincent Chin died after being beaten into a coma in Highland Park, Michigan, U.S., by two automotive workers who were angry about the success of Japanese auto companies.

The Los Angeles Dodgers started Steve Garvey, Davey Lopes, Ron Cey, and Bill Russell in the infield, beginning a record eight-year run in Major League Baseball for four people designated as starters for those positions.

President Richard Nixon signed Title IX (co-author Patsy Mink pictured) into law as part of the Education Amendments, prohibiting gender discrimination in any educational program receiving U.S. federal funds.

In a nationwide referendum, Gamal Abdel Nasser (pictured) was elected President of Egypt, a post he held until his death in 1970.

Canada's largest recorded onshore earthquake struck Vancouver Island, British Columbia.

The Holocaust: After a closely supervised visit to Theresienstadt Ghetto in German-occupied Czechoslovakia, Red Cross official Maurice Rossel reported that conditions there were "almost normal".

The College Board administered the first Scholastic Aptitude Test, a major standardized test for university and college admissions in the United States.