| 102631 | September 8 | Death | 2014 – George Zuverink, American baseball player (b. 1924) |
| 102632 | September 8 | Death | 2015 – Joaquín Andújar, Dominican baseball player (b. 1952) |
| 102633 | September 8 | Death | 2015 – Erlinda Cortes, Filipino actress (b. 1924) |
| 102634 | September 8 | Death | 2015 – Andrew Kohut, American political scientist and academic (b. 1942) |
| 102635 | September 8 | Death | 2015 – Tyler Sash, American football player (b. 1988) |
| 102636 | September 8 | Death | 2015 – Joost Zwagerman, Dutch author and poet (b. 1963) |
| 102637 | September 8 | Holiday and observance | Christian Feast Day:Adrian and Natalia of Nicomedia (Roman Catholic Church)Nativity of Mary (Roman Catholic Church), (Anglo-Catholicism)Monti Fest (Mangalorean Catholic)Our Lady of CharityPope Sergius ISeptember 8 (Eastern Orthodox liturgics)Feast Day of |
| 102638 | September 8 | Holiday and observance | Earliest day on which Auditor's Day can fall, while September 14 is the latest celebrated on the second Sunday in September. (Church of Scientology) |
| 102639 | September 8 | Holiday and observance | Earliest day on which Day of the Workers in the Oil, Gas, Power, and Geological Industry can fall, while September 14 is the latest celebrated on the second Saturday in September. (Turkmenistan) |
| 102640 | September 8 | Holiday and observance | Earliest day on which Grandparents Day can fall, while September 14 is the latest celebrated on the second Sunday in September. (Canada, Estonia) |
| 102641 | September 8 | Holiday and observance | Earliest day on which Mid-Autumn Festival can fall, while October 8 is the latest celebrated on the 15th day in the 8th month of Chinese calendar. (China, Chinese diaspora) |
| 102642 | September 8 | Holiday and observance | Earliest day on which Turkmen Bakhshi Day can fall, while September 14 is the latest celebrated on the second Sunday in September. (Turkmenistan) |
| 102643 | September 8 | Holiday and observance | Day of the Battle of Borodino (Russia) |
| 102644 | September 8 | Holiday and observance | Feast of 'Izzat (Might) – First day of the tenth month of the Bahá'í calendar. (Bahá'í Faith) |
| 102645 | September 8 | Holiday and observance | Independence Day, celebrates the independence of Macedonia from Yugoslavia in 1991. |
| 102646 | September 8 | Holiday and observance | International Literacy Day (International) |
| 102647 | September 8 | Holiday and observance | Martyrs' Day (Afghanistan) (date may fall on September 9, follows a non-Gregorian calendar) |
| 102648 | September 8 | Holiday and observance | National day, also the feast of Our Lady of Meritxell. (Andorra) |
| 102649 | September 8 | Holiday and observance | Victory Day (Pakistan) |
| 102650 | September 8 | Holiday and observance | Victory Day, also the feast of Our Lady of Victories or il-Vittorja (Malta) |
| 102651 | September 8 | Holiday and observance | World Physical Therapy Day |
| 102652 | September 9 | Event | 9 – Arminius' alliance of six Germanic tribes ambushes and annihilates three Roman legions of Publius Quinctilius Varus in the Battle of the Teutoburg Forest. |
| 102653 | September 9 | Event | 337 – Constantine II, Constantius II, and Constans succeed their father Constantine I as co-emperors. The Roman Empire is divided between the three Augusti. |
| 102654 | September 9 | Event | 533 – A Byzantine army of 15,000 men under Belisarius lands at Caput Vada (modern Tunisia) and marches to Carthage. |
| 102655 | September 9 | Event | 1000 – Battle of Svolder, Viking Age. |
| 102656 | September 9 | Event | 1087 – William Rufus becomes King of England, taking the title William II, (reigned until 1100). |
| 102657 | September 9 | Event | 1141 – Yelü Dashi, the Liao dynasty general who founded the Qara Khitai, defeats the Seljuq and Kara-Khanid forces at the Battle of Qatwan. |
| 102658 | September 9 | Event | 1379 – Treaty of Neuberg, splitting the Austrian Habsburg lands between the Habsburg dukes Albert III and Leopold III. |
| 102659 | September 9 | Event | 1488 – Anne becomes sovereign Duchess of Brittany, becoming a central figure in the struggle for influence that leads to the union of Brittany and France. |
| 102660 | September 9 | Event | 1493 – Battle of Krbava Field, a decisive defeat of Croats in Croatian struggle against the invasion by the Ottoman Empire. |