U.S. president Jimmy Carter gives his "malaise speech".
Space Race: Apollo–Soyuz Test Project features the dual launch of an Apollo spacecraft and a Soyuz spacecraft on the first Soviet-United States human-crewed flight. It was the last launch of both an Apollo spacecraft, and the Saturn family of rockets...
In Nicosia, Cyprus, Greek junta-sponsored nationalists launch a coup d'état, deposing Makarios III and installing Nikos Sampson as the president of Cyprus.
Eighteen Nobel laureates sign the Mainau Declaration against nuclear weapons, later co-signed by thirty-four others.
The Boeing 367-80, the prototype for both the Boeing 707 and C-135 series, takes its first flight.
Aftermath of World War I: The Parliament of Poland establishes Silesian Voivodeship before the Polish-German plebiscite.
World War I: The Second Battle of the Marne begins near the River Marne with a German attack.
The first air raid in history occurs; Austria launches pilotless balloons against the city of Venice
Napoleonic Wars: Napoleon Bonaparte surrenders aboard HMS Bellerophon.
The Rosetta Stone is found in the Egyptian village of Rosetta by French Captain Pierre-François Bouchard during Napoleon's Egyptian Campaign.
French Revolution: Gilbert du Motier, Marquis de Lafayette, is named by acclamation Colonel General of the new National Guard of Paris.
Aleksei Chirikov sights land in Southeast Alaska. He sends men ashore in a longboat, making them the first Europeans to visit Alaska.
The first university of Finland, the Royal Academy of Turku, is inaugurated in Turku.
First Crusade: Christian soldiers take the Church of the Holy Sepulchre in Jerusalem after the final assault of a difficult siege.
First Jewish–Roman War: Titus and his armies breach the walls of Jerusalem. (17th of Tammuz in the Hebrew calendar).