| 114571 | October 6 | Holiday and observance | Memorial Day for the Martyrs of Arad (Hungary) |
| 114572 | October 6 | Holiday and observance | Teachers' Day (Sri Lanka) |
| 114573 | October 6 | Holiday and observance | Yom Kippur War commemorations:Armed Forces Day (Egypt)Tishreen Liberation Day (Syria) |
| 114574 | October 7 | Event | 3761 BC – The epoch reference date epoch (origin) of the modern Hebrew calendar (Proleptic Julian calendar). |
| 114575 | October 7 | Event | 1477 – Uppsala University is inaugurated after receiving its corporate rights from Pope Sixtus IV in February the same year. |
| 114576 | October 7 | Event | 1513 – Battle of La Motta: Spanish troops under Ramón de Cardona defeat the Venetians. |
| 114577 | October 7 | Event | 1542 – Explorer Cabrillo discovers Santa Catalina Island off of the California coast. |
| 114578 | October 7 | Event | 1571 – The Battle of Lepanto is fought, and the Holy League (Spain and Italy) annihilates the Turkish fleet. |
| 114579 | October 7 | Event | 1582 – Because of the implementation of the Gregorian calendar, this day is skipped in Italy, Poland, Portugal and Spain. |
| 114580 | October 7 | Event | 1691 – The English royal charter for the Province of Massachusetts Bay is issued. |
| 114581 | October 7 | Event | 1763 – King George III of the United Kingdom issues the Royal Proclamation of 1763, closing aboriginal lands in North America north and west of Alleghenies to white settlements. |
| 114582 | October 7 | Event | 1776 – Crown Prince Paul of Russia marries Sophie Marie Dorothea of Württemberg. |
| 114583 | October 7 | Event | 1777 – American Revolutionary War: The Americans defeat the British in the Second Battle of Saratoga, also known as the Battle of Bemis Heights. |
| 114584 | October 7 | Event | 1780 – American Revolutionary War: Battle of Kings Mountain: American Patriot militia defeat Loyalist irregulars led by British major Patrick Ferguson in South Carolina. |
| 114585 | October 7 | Event | 1800 – French corsair Robert Surcouf, commander of the 18-gun ship La Confiance, captures the British 38-gun Kent inspiring the traditional French song Le Trente-et-un du mois d'août. |
| 114586 | October 7 | Event | 1826 – The Granite Railway begins operations as the first chartered railway in the U.S. |
| 114587 | October 7 | Event | 1828 – Morea expedition: The city of Patras, Greece, is liberated by the French expeditionary force in the Peloponnese under General Maison. |
| 114588 | October 7 | Event | 1840 – Willem II becomes King of the Netherlands. |
| 114589 | October 7 | Event | 1862 – Royal Columbian Hospital (RCH) opens as the first hospital in the Canadian province of British Columbia |
| 114590 | October 7 | Event | 1864 – American Civil War: Bahia incident: USS Wachusett illegally captures the CSS Florida Confederate raider while in port in Bahia, Brazil in violation of Brazilian neutrality. |
| 114591 | October 7 | Event | 1868 – Cornell University holds opening day ceremonies initial student enrollment is 412, the highest at any American university to that date. |
| 114592 | October 7 | Event | 1870 – Franco-Prussian War: Siege of Paris: Léon Gambetta flees Paris in a hot-air balloon. |
| 114593 | October 7 | Event | 1879 – Germany and Austria-Hungary sign the "Twofold Covenant" and create the Dual Alliance. |
| 114594 | October 7 | Event | 1912 – The Helsinki Stock Exchange sees its first transaction. |
| 114595 | October 7 | Event | 1916 – Georgia Tech defeats Cumberland University 222–0 in the most lopsided college football game in American history. |
| 114596 | October 7 | Event | 1919 – KLM, the flag carrier of the Netherlands, is founded. It is the oldest airline still operating under its original name. |
| 114597 | October 7 | Event | 1924 – Andreas Michalakopoulos becomes Prime Minister of Greece for a short period of time. |
| 114598 | October 7 | Event | 1929 – Photios II becomes Ecumenical Patriarch of Constantinople. |
| 114599 | October 7 | Event | 1933 – Air France is inaugurated, after being formed by a merger of 5 French airlines. |
| 114600 | October 7 | Event | 1940 – World War II: The McCollum memo proposes bringing the United States into the war in Europe by provoking the Japanese to attack the United States. |