| 114181 | October 5 | Holiday and observance | Engineer's Day (Bolivia) |
| 114182 | October 5 | Holiday and observance | International Day of No Prostitution (International) |
| 114183 | October 5 | Holiday and observance | One of the three Mundus patet (Roman Empire) |
| 114184 | October 5 | Holiday and observance | Republic Day (Portugal) |
| 114185 | October 5 | Holiday and observance | Teachers' Day (Pakistan) |
| 114186 | October 5 | Holiday and observance | World Teachers' Day (International) |
| 114187 | October 6 | Event | 105 BC – Battle of Arausio: The Cimbri inflict the heaviest defeat on the Roman army of Gnaeus Mallius Maximus. |
| 114188 | October 6 | Event | 69 BC – Battle of Tigranocerta: Forces of the Roman Republic led by Lucullus defeat the army of the Kingdom of Armenia led by King Tigranes the Great. |
| 114189 | October 6 | Event | 23 – Rebels kill and decapitate the Xin dynasty emperor Wang Mang two days after the capital Chang'an is sacked during a peasant rebellion. |
| 114190 | October 6 | Event | 404 – Byzantine Empress Eudoxia has her seventh and last pregnancy which ends in a miscarriage. She is left bleeding and dies of an infection shortly after. |
| 114191 | October 6 | Event | 1539 – Spanish conquistador Hernando de Soto and his army enter the Apalachee capital of Anhaica (present-day Tallahassee, Florida) by force. |
| 114192 | October 6 | Event | 1582 – Because of the implementation of the Gregorian calendar, this day is skipped in Italy, Poland, Portugal and Spain. |
| 114193 | October 6 | Event | 1600 – Jacopo Peri's Euridice, the earliest surviving opera, receives its première performance in Florence, signifying the beginning of the Baroque period |
| 114194 | October 6 | Event | 1683 – German immigrant families found Germantown in the colony of Pennsylvania, marking the first major immigration of German people to America. |
| 114195 | October 6 | Event | 1723 – Benjamin Franklin arrives in Philadelphia at the age of 17. |
| 114196 | October 6 | Event | 1762 – Seven Years' War: Conclusion of the Battle of Manila between Britain and Spain, which resulted in the British occupation of Manila for the rest of the war. |
| 114197 | October 6 | Event | 1777 – American Revolutionary War: General Sir Henry Clinton leads British forces in the capture of Continental Army Hudson River defenses in the Battle of Forts Clinton and Montgomery. |
| 114198 | October 6 | Event | 1789 – French Revolution: Louis XVI returns to Paris from Versailles after being confronted by the Parisian women on October 5. |
| 114199 | October 6 | Event | 1849 – The execution of The 13 Martyrs of Arad after the Hungarian war of independence. |
| 114200 | October 6 | Event | 1854 – In England the Great fire of Newcastle and Gateshead starts shortly after midnight, leading to 53 deaths and hundreds injured. |
| 114201 | October 6 | Event | 1876 – The American Library Association was founded. |
| 114202 | October 6 | Event | 1884 – The Naval War College of the United States Navy is founded in Newport, Rhode Island. |
| 114203 | October 6 | Event | 1889 – American inventor Thomas Edison shows his first motion picture. |
| 114204 | October 6 | Event | 1898 – Phi Mu Alpha Sinfonia, the largest American music fraternity, is founded at the New England Conservatory of Music by Ossian Everett Mills. |
| 114205 | October 6 | Event | 1903 – The High Court of Australia sits for the first time. |
| 114206 | October 6 | Event | 1908 – Austria-Hungary annexes Bosnia-Herzegovina, sparking a crisis. |
| 114207 | October 6 | Event | 1910 – Eleftherios Venizelos is elected Prime Minister of Greece for the first time (seven times in total). |
| 114208 | October 6 | Event | 1923 – The great powers of World War I withdraw from Istanbul. |
| 114209 | October 6 | Event | 1927 – Opening of The Jazz Singer, the first prominent talking movie. |
| 114210 | October 6 | Event | 1939 – World War II: Germany's invasion of Poland ends with the surrender of Independent Operational Group Polesie after the Battle of Kock |