Wednesday, September 21, 2011
Tuesday, September 21, 2004
Friday, September 21, 2001
                        The AZF fertiliser factory in Toulouse, France, explodes, killing 31 and injuring over 2000. Later, a terrorist group take up the name AZF when threatening to bomb French railways.
                    
Tuesday, September 21, 1999
                         The 
921 earthquake, also known as the Jiji earthquake,(magnitude 7.6 on the Richter scale) kills about 2,400 people in 
Taiwan.
                    
                        October ndash NASA loses one of its probes, the Mars Climate Orbiter.
                    
Sunday, September 21, 1997
                         The Islamic Salvation Army, the Islamic Salvation Fronts' armed wing, declares a unilateral ceasefire in Algeria.
                    
Monday, September 21, 1992
Mexico establishes diplomatic relations with 
Vatican City, ending a break that lasted over 130 years.
                    
 Saturday, September 21, 1991
September 30 ndash Iraq disarmament crisis: IAEA inspectors discover files on Iraq's hidden nuclear weapons program. Iraqi officials confiscate documents from UN weapons inspectors, refusing to allow them to leave the site without turning over other documents. A 4-day standoff ensues. Iraq permits the team to leave with the documents after the UN Security Council threatens enforcement actions.
                    
 Tuesday, September 21, 1982
Monday, September 21, 1981
                        Sandra Day O'Connor takes her seat as the first female justice of the U.S. Supreme Court.
                    
Sunday, September 21, 1980
                        The command council of 
Iraq orders its army to deliver its fatal blow on 
Iranian military targets, initiating the 
Iran–
Iraq War.
                    
Bülent Ulusu, ex admiral, forms the new government of 
Turkey (44th government, composed mostly of technocrats)
                    
 Wednesday, September 21, 1977
Sunday, September 21, 1975
                         Sultan Yahya Petra ibni Almarhum Sultan Ibrahim Petra, Sultan of Kelantan, becomes the 6th Yang di-Pertuan Agong of Malaysia.
                    
Thursday, September 21, 1972
Tuesday, September 21, 1971
Saturday, September 21, 1968
                         The Soviet's 
Zond 5 unmanned lunar flyby mission returns to earth, with its first of a kind biological payload intact.
                    
Monday, September 21, 1964
                        The island of Malta obtains independence from the United Kingdom.
                    
Thursday, September 21, 1961
                        The old Deutsche Opernhaus in the Berlin neighborhood of Charlottenburg is returned to its newly rebuilt house as the Deutsche Oper Berlin.
                    
                         In France, the OAS slips an anti-de Gaulle message into TV programming.
                    
                        In the U.S., the 
Walt Disney anthology television series, renamed "Walt Disney's Wonderful World of Color", moves from ABC to NBC after seven years on the air, and begins telecasting its programs in color for the first time. Years later, after Disney's death, the still-on-the-air program will be renamed "The Wonderful World of Disney".
                    
Friday, September 21, 1956
Tuesday, September 21, 1937
Friday, September 21, 1934
                         A 
typhoon in Honshū, 
Japan kills 3,036 people, and destroys the temple, schools, and other buildings in Osaka.
                    
Tuesday, September 21, 1920
Wednesday, September 21, 1898
                         Empress Dowager Cixi of China engineers a coup d'etat, marking the end of the Hundred Days' Reform the Guangxu Emperor is arrested.
                    
Thursday, September 21, 1893
Tuesday, September 21, 1886
Thursday, September 21, 1826
                         Construction of the Rideau Canal begins in Canada.
                    
Monday, September 21, 1795
                         Battle of the Diamond: Protestant forces defeat Catholic troops in Loughgall, Ireland, leading to the foundation of the Orange Order.
                    
Friday, September 21, 1792
Thursday, September 21, 1780
Wednesday, September 21, 1774
                         George Mason and George Washington found the Fairfax County Militia Association, a military unit independent of British control.
                    
Saturday, September 21, 1765
Tuesday, September 21, 1745
                         Battle of Prestonpans: British Government forces are defeated.
                    
Monday, September 21, 1676
Tuesday, September 21, 1638
Sunday, September 21, 1608
Tuesday, September 21, 1599
Thursday, September 21, 1589
                         Battle of Arques: King Henry's forces defeat the forces of the Catholic League under Charles of Lorraine, Duke of Mayenne (younger brother of Henry I, Duke of Guise).
                    
Monday, September 11, 1559 (Julianian calendar)
                         The 15-year-old King Francis II of France is crowned at Reims.  The crown is too heavy for him and has to be held in place by his nobles.Guy, John, My Heart is my Own, London, Fourth Estate, 2004, ISBN 0-00-71930-8:47
                    
Friday, September 11, 1551 (Julianian calendar)
                        The fifth outbreak of sweating sickness occurs in England. John Caius of Shrewsbury writes the first full contemporary account of the symptoms of the disease.
                    
                         The Royal and Pontifical University of Mexico is founded in Mexico City (Mexico), being the second officially established university in the Americas.
                    
                        In 
Henan province, 
China, during the 
Ming Dynasty, a severe frost in the spring destroys the winter wheat crop. Torrential rains in mid summer cause massive flooding of farmland and villages (by some accounts submerged in a meter of water). In the fall a large tornado demolishes houses and flattens much of the buckwheat in the fields. Famine victims either flee, starve, or resort to 
cannibalism. This follows a series of natural disasters in 
Henan in the years 
1528, 
1531, 
1539, and 
1545.
                    
Monday, September 12, 1496 (Julianian calendar)
Monday, September 12, 1435 (Julianian calendar)
                        China returns to a policy of isolation.
                    
Saturday, September 12, 1411 (Julianian calendar)
Saturday, September 13, 1371 (Julianian calendar)
                        The 
Hongwu Emperor of the 
Ming Dynasty in 
China introduces the 
census registration system of "lijia", or the hundreds-and-tithing system, throughout the 
Yangzi valley. This system groups households into units of ten and groups of one hundred, whereupon their capacities for paying taxes and providing the state with 
corvée labor service can be assessed. The system becomes fully operational in 
1381, when it counts 59,873,305 people living in 
China (the historian 
Timothy Brook asserts that the number was much higher, somewhere between 65 million and 75 million).
                    
                        Zhao Bing Fa becomes King of Mong Mao (in present day south China/north Myanmar) after the death of his father, Si Ke Fa.
                    
Thursday, September 14, 1217 (Julianian calendar)
                        Stefan Nemanjić is elevated to be first King of the Serbian lands by Pope Honorius III and crowned by Stefan's brother, Archimandrite Sava, in Žiča.
                    
                        A decree made in England establishes that only Englishman can be clergy of Ireland.
                    
                        November ndash In the 
Kingdom of Castile, former regent Álvaro Núñez de Lara is captured and forced to relinquish all his castles.ref name=linehan1999
                    
                         Battle of St. Matthew's Day: The Germans defeat the Estonians.
                    
Saturday, September 16, 937 (Julianian calendar)
Tuesday, September 20, 455 (Julianian calendar)
                        Skandagupta succeeds Kumaragupta I as ruler of the Gupta Empire (India). During his reign he crush the Hun invasion, however, the expence of the wars drains the empire's resources and contributes to its decline.
                    
                        Battle of Aylesford: Prince Vortimer rebels against the pro-Anglo-Saxon policies of his father, Vortigern. He is defeated in the battle at Aylesford (Kent). Hengist and his son Oisc become kings of Kent. Horsa and Catigern, brother of Vortimer, are killed. The Britons withdraw to London (according to the Anglo-Saxon Chronicle).
                    
                         Avitus enters Rome with a Gallic army. He restores the imperial authority in 
Noricum (modern 
Austria) and leaves a 
Gothic force under 
Remistus, Visigoth general ("magister militum"), at 
Ravenna.
                    
Barter economy replaces organized 
trade as 
Romans and other citizens desert their towns for the countryside, where they will be less vulnerable against 
barbarian raids (approximate date).
                    
 Monday, September 20, 454 (Julianian calendar)
                        The Vandals conquer 
Malta.