WHAT HAPPENED ON 14. SEPTEMBER
Want to find out what all happened on 14. September

Domitian becomes Emperor of the Roman Empire upon the death of his brother Titus. (14. September 81)

Emperor Heraclius enters Constantinople in triumph after his victory over the Persian Empire. (14. September 629)

"Night of the three Caliphs": Harun al-Rashid becomes the Abbasid caliph upon the death of his brother al-Hadi. Birth of Harun's son al-Ma'mun. (14. September 786)

Battle of Ishibashiyama in Japan. (14. September 1180)

Flight of the Earls from Lough Swilly, Donegal, Ireland. (14. September 1607)

Bishop Gore School, one of the oldest schools in Wales, is founded. (14. September 1682)

George Frideric Handel completes his oratorio Messiah (14. September 1741)

The British Empire adopts the Gregorian calendar, skipping eleven days (the previous day was September 2). (14. September 1752)

Seneca warriors defeat British forces at the Battle of Devil's Hole during Pontiac's War. (14. September 1763)

The Papal States lose Avignon to the French Empire. (14. September 1791)

Finnish War: Russians defeat the Swedes in the bloody Battle of Oravais. (14. September 1808)

Napoleonic Wars: The French Grande Armée enters Moscow. The Fire of Moscow begins as soon as Russian troops leave the city. (14. September 1812)

The poem Defence of Fort McHenry is written by Francis Scott Key. The poem is later used as the lyrics of The Star-Spangled Banner. (14. September 1814)

The Ottoman Empire signs the Treaty of Adrianople with Russia, thus ending the Russo-Turkish War. (14. September 1829)

Jang Bahadur and his brothers massacre about 40 members of the Nepalese palace court. (14. September 1846)

Mexican–American War: Winfield Scott captures Mexico City. (14. September 1847)

American Civil War: The Battle of South Mountain, part of the Maryland Campaign, is fought. (14. September 1862)

President of the United States William McKinley dies after an assassination attempt on September 6, and is succeeded by Theodore Roosevelt. (14. September 1901)

Russia is officially proclaimed a republic. (14. September 1917)

World War II: The Estonian military boards the Polish submarine ORP Orzeł in Tallinn, sparking a diplomatic incident that the Soviet Union will later use to justify the annexation of Estonia. (14. September 1939)