September 14 is the 257th day of the Gregorian calendar (258th in leap years). There are 108 days to go until the end of the year.
81 - Titus Flavius Domitian becomes Roman emperor after the death of his brother Titus
629 - Emperor Heraclius returns in triumph to Constantinople after his victory in the war against the Persians (602-629) carrying in triumph the relic of the True Cross he has redeemed
786 - Hārūn al-Rashīd becomes Abbasid caliph on the death of his brother Al-Hadi
1224 - According to tradition, Francis of Assisi receives the stigmata on Monte della Verna
1357 - Union of kingdoms between King Robert and Queen Sara on 14 September
1321 - The Ménéstrandise is founded in Paris, a guild of musicians, jesters and minstrels, which existed until 1776
1752 - The British Empire adopts the Gregorian calendar by skipping eleven days (September 2 was followed by September 14)
1758 - Pope Clement XIII publishes the encyclical "A Quo Die", on the need for the internal union of Catholics, on the care against pride, haughtiness, the vainglory of shepherds, on the attention to alms, on the need for good preaching
1812 - The Russian army sets fire to Moscow to prevent Napoleon from capturing it
1814 - Francis Scott Key writes The Star-Spangled Banner
1829 - The Treaty of Adrianople puts an end to the conflict between the Russian and Ottoman Empire, which began in 1828.
1882 - Flood of the city of Verona
1886 - Typewriter ribbon patented
1901 - Theodore Roosevelt becomes president of the United States of America
1917 - Russia officially proclaims itself a republic (1 September CG).
1923 - Miguel Primo de Rivera becomes dictator of Spain
1930 - The German National Socialist Workers' Party gains over 18% of the votes and 107 seats in the Reichstag, becoming the second largest party in Germany
1942 - World War II: Operation Agreement is launched by the British in the night between 13 and 14 in order to recapture Tobruch.
1944 - Second bombing of Pescara
1948 - Beginning of excavations of the United Nations headquarters in New York
1953 - Nikita Khruščëv is elected first secretary of the Communist Party of the Soviet Union
1959 - The Soviet Luna 2 probe crashes into the Moon, becoming the first human artifact to reach it
1960 - The Organization of Petroleum Exporting Countries (OPEC) is founded
1964 - Opening of the third cycle of the Second Vatican Council
1965 - Opening of the fourth and last cycle of the Second Vatican Council
1984 - Joe Kittinger becomes the first person to solo cross the Atlantic Ocean in a hot air balloon
1988 - Judge Alberto Giacomelli, 69 years old, is killed in Trapani by a commando of Cosa Nostra
1991 - Michelangelo Buonarroti's David damaged
1993 - Okecie, Poland: During a storm, an Airbus A320 fails to decelerate on landing (due to incorrect specifications of the brake management software), a pilot and another passenger die
1999 - Kiribati, Nauru and Tonga join the UN.
2002 - Cardinal Dionigi Tettamanzi takes possession of the Archdiocese of Milan
Sweden, in a referendum, rejects the adoption of the Euro
Estonia, with a referendum, approves entry into the European Union
Baghdad: a series of attacks kills 154 and injures over 500, most of them Shiites. Al Qaeda claims the massacres, as revenge for the deaths caused a few weeks earlier during a Sunni celebration
Latina: a high-potential bomb explodes in the barracks of the provincial command of the Carabinieri. The constable Alberto Andreoli is killed, another agent reports minor injuries
2015 - The first gravitational wave is detected at the VIRGO interferometer
There are about 1 030 rumors of people born on September 14; see the September 14 Born page for a descriptive list or