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Old clock in sand with the words: It Happend in September

Browse Historical Events by Day: What Happened on September 7th?

Discover major events and cultural milestones that happened on this day — organized by year. Dates for earlier events may be approximate.

962 CE, September 7

Otto I is crowned as the Holy Roman Emperor in Rome, marking the establishment of the Holy Roman Empire and the beginning of the Ottonian dynasty.

1071 CE, September 7

The Battle of Manzikert occurs in eastern Anatolia (modern-day Turkey), where the Seljuk Turks defeat the Byzantine Empire, leading to significant territorial losses for the Byzantines and opening Anatolia to Turkish conquest.

1159 CE, September 7

The Treaty of Benevento is signed, ending the long-standing conflict between the papacy and the Kingdom of Sicily.

1305 CE, September 7

Pope Clement V moves the papal seat from Rome to Avignon, beginning the period known as the Avignon Papacy.

1565 CE, September 7

The Great Siege of Malta ends, as the Ottoman Empire lifts its siege of the island after several months of intense fighting.

1776 CE, September 7

During the Revolutionary War, the American submersible craft Turtle attempts to attach a time bomb to the hull of British Admiral Richard Howe’s flagship Eagle in New York Harbor. It was the first use of a submarine in warfare. More

1812 CE, September 7

The Battle of Borodino takes place during Napoleon's invasion of Russia, resulting in a costly victory for the French forces.

1813 CE, September 7

The U.S. Receives The Nickname 'Uncle Sam". During the War of 1812, Samuel Wilson, a meat packer from Troy, New York. was one of the suppliers to the U. S. Army. He labeled his barrels of beef with “U.S.” to indicate U.S. government property, but soldiers referred to the “U.S.” as Uncle Sam (Wilson). On September 7, 1813, a local newspaper picked up the story which eventually led to the widespread use of the nickname. Congress passed a resolution in 1961 that recognized Samuel Wilson as the inspiration for the symbol Uncle Sam.

1822 CE, September 7

Brazil Independence day from Portugal (Declaration of independence by Pedro I of Brazil).

1940 CE, September 7

The Blitz begins as German Luftwaffe planes bomb London, marking the start of a sustained aerial bombing campaign during World War II on British towns and cities which went on until May 1941. More

1977 CE, September 7

The Panama Canal Treaty is signed, stating that the Panama Canal Zone would cease to exist on the first of October, 1979, and the Canal itself would be turned over to the Panamanians at the end of 1999. A companion treaty stated that the U.S. could use its military to defend the Panama Canal against any threat to its neutrality. It took more than six months before the Senate voted. More

1979 CE, September 7

The Soviet Union launches the space probe Venera 12, which successfully lands on Venus and transmits data back to Earth.