26 June 1666

The U.S. Supreme Court ruled in Obergefell v. Hodges that the right of same-sex couples to marry is guaranteed by the Fourteenth Amendment.

The U.S. Supreme Court granted federal recognition to same-sex marriage when it overturned the Defense of Marriage Act.

A G20 summit, the largest and most expensive security operation in Canadian history, began in downtown Toronto.

The U.S. Supreme Court struck down sodomy laws in the country in the landmark decision Lawrence v. Texas.

J. K. Rowling's Harry Potter and the Philosopher's Stone, the first book in the Harry Potter fantasy novel series, was released.

A Douglas DC-4 Skymaster aircraft crashed after departing from Perth, becoming the worst peacetime aviation accident in Australia's history.

At a conference in San Francisco, delegates from 50 nations signed a charter establishing the United Nations.

World War I: The 26-day Battle of Belleau Wood near the Marne River in France ended with American forces finally clearing that forest of German troops.

Organized by Vladimir Lenin and Joseph Stalin, among others, Bolshevik revolutionaries robbed a bank stagecoach in Tiflis, present-day Georgia.

The 1906 French Grand Prix, the first Grand Prix motor racing competition, began near Le Mans.

Bangui, the capital and largest city of the present-day Central African Republic, was founded in French Congo.

French chemist Henri Moissan successfully isolated elemental fluorine (pictured in liquid state), for which he later won the Nobel Prize in Chemistry.

French authorities suppressed the June Days uprising (pictured), in which workers rioted in response to plans to close the National Workshops.

Julia Gardiner (pictured) married U.S. President John Tyler at the Church of the Ascension in New York, becoming the first lady.

The Council of Pisa elected Peter of Candia as Alexander V, becoming the third simultaneous claimant of the papacy during the Western Schism.

Mongol conquest of Anatolia: Mongols achieved a decisive victory over the Seljuk Turks, leading to the decline and disintegration of the Seljuk state.

Julian Assange, founder of WikiLeaks, returns to Australia after pleading guilty to one charge of espionage in a Saipan court and subsequently being released by the United States Department of Justice.

The U.S. Supreme Court rules, 5–4, that same-sex couples have a constitutional right to marriage under the 14th Amendment to the United States Constitution.

The U.S. Supreme Court rules, 5–4, that Section 3 of the Defense of Marriage Act is unconstitutional and in violation of the Fifth Amendment to the United States Constitution.

The Waldo Canyon fire descends into the Mountain Shadows neighborhood in Colorado Springs, burning 347 homes in a matter of hours and killing two people.

Pope Benedict XVI reinstates the traditional laws of papal election in which a successful candidate must receive two-thirds of the votes.

Mari Alkatiri, the first Prime Minister of East Timor, resigns after weeks of political unrest.

The U.S. Supreme Court rules in Lawrence v. Texas that sex-based sodomy laws are unconstitutional.

The Human Genome Project announces the completion of a "rough draft" sequence.