On this day: 25 June

The Franks are defeated by the Burgundians in the Battle of Vézeronce.

In the Battle of Fontenay-en-Puisaye, forces led by Charles the Bald and Louis the German defeat the armies of Lothair I of Italy and Pepin II of Aquitaine.

War of Saint Sabas: In the Battle of Acre, the Venetians defeat a larger Genoese fleet sailing to relieve Acre.

At the Diet of Augsburg the Augsburg Confession is presented to the Holy Roman Emperor by the Lutheran princes and Electors of Germany.

Venetian Elena Cornaro Piscopia is the first woman awarded a doctorate of philosophy when she graduates from the University of Padua.

Maria Theresa is crowned Queen of Hungary.

Virginia becomes the tenth state to ratify the United States Constitution.

American Indian Wars: Battle of the Little Bighorn: 300 men of the U.S. 7th Cavalry Regiment under Lieutenant Colonel George Armstrong Custer are wiped out by 5,000 Lakota, Cheyenne and Arapaho, led by Sitting Bull and Crazy Horse.

The Taoist monk Wang Yuanlu discovers the Dunhuang manuscripts, a cache of ancient texts that are of great historical and religious significance, in the Mogao Caves of Dunhuang, China.

The United States Congress passed the Mann Act, which prohibited the interstate transport of females for "immoral purposes".

Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.

American Civil War veterans begin arriving at the Great Reunion of 1913.

Colombia–Soviet Union relations are established.

Dr. Douglas Hyde is inaugurated as the first President of Ireland.

Second World War: Operation Aerial, an evacuation of nearly 200,000 Allied soldiers from French ports, was completed.

World War II: The Battle of Tali-Ihantala, the largest battle ever fought in the Nordic countries, begins.

The Diary of a Young Girl (better known as The Diary of Anne Frank) is published.

The United States Congress passes the Displaced Persons Act to allow World War II refugees to immigrate to the United States above quota restrictions.

The United Nations Security Council passed Resolution 82 condemning the North Korean invasion of South Korea.

Two cryptographers working for the U.S. National Security Agency left on vacation to Mexico, and proceeded to defect to the Soviet Union.

More than an estimated 400 million people viewed Our World, the first live international satellite television production.

Mozambique achieves independence from Portugal.

Prime Minister Indira Gandhi declares a state of internal emergency in India.

The rainbow flag (original version pictured) representing gay pride was first flown at the San Francisco Gay Freedom Day parade.

Hosts Argentina defeat the Netherlands by a score of 3–1 in the final to win their first ever FIFA World Cup.

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

The breakup of Yugoslavia begins when Slovenia and Croatia declare their independence from Yugoslavia.

Space Shuttle Columbia launches on STS-50, the first shuttle mission to carry Extended Duration Orbiter hardware.

Kim Campbell is sworn in as the first female Prime Minister of Canada.

American rapper Jay-Z releases his debut album, Reasonable Doubt.

The National Hockey League approved expansion franchises for Nashville (1998), Atlanta (1999), Columbus (2000), and Minneapolis-Saint Paul (2000).

An uncrewed Progress spacecraft collides with the Russian space station Mir.

In Clinton v. City of New York, the United States Supreme Court decides that the Line Item Veto Act of 1996 is unconstitutional.

In response to a Freedom of Information Act request, the CIA acknowledged the existence of Area 51 (diagram pictured), a secretive U.S. Air Force facility in Nevada and a subject of various UFO, and other, conspiracy theories.

Russian invasion of Ukraine: Russian forces captured the city of Sievierodonetsk, Ukraine, after six weeks of fighting.

The prime minister of Bangladesh, Sheikh Hasina inaugurates the longest bridge of Bangladesh, Padma Bridge.

Thousands of people storm Kenya's Parliament Buildings protesting the passing of the government's 2024/25 Finance Bill.