On October 6:
105 BC Battle of Arausio: The Cimbri defeated the Roman army of Gnaeus Mallius Maximus.
69 BC Battle of Tigranocerta: Forces of the Roman Republic defeated the army of the Kingdom of Armenia led by King Tigranes the Great.
68 BC Battle of Artaxata: Lucullus defeated Tigranes the Great of Armenia.
1600 Jacopo Peri‘s Euridice, the earliest surviving opera, received its première performance in Florence, signifying the beginning of the Baroque Period.
1683 William Penn brought 13 German immigrant families to the colony of Pennsylvania, marking the first immigration of German people to America.
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.
1769 Ship’s boy Nicholas Young received a gallon of rum and had Young Nick’s Head named in his honour for being the first aboard the Endeavour to spot land.
1789 French Revolution: Louis XVI returned to Paris from Versailles after being confronted by the Parisian women.
1849 The execution of the 13 Martyrs of Arad after the Hungarian war of independence.
1854 The Great fire of Newcastle and Gateshead started shortly after midnight, leading to 53 deaths and hundreds injured.
1884 The Naval War College of the United States Navy was founded in Newport, Rhode Island.
1889 Thomas Edison showed his first motion picture.
1903 The High Court of Australia sat for the first time.
1906 The Majlis of Iran convened for the first time.
1908 Austria annexed Bosnia and Herzegovina.
1910 Barbara Castle, British politician, first woman to be First Secretary of State, was born (d. 2002).
1914 Thor Heyerdahl, Norwegian explorer was born.
1927 Opening of The Jazz Singer, the first prominent talking movie.
1928 Chiang Kai-Shek became Chairman of the Republic of China.
1939 World War II: The Polish army was defeated.
1942 Britt Ekland, Swedish actress, was born.
1948 Gerry Adams, Northern Irish politician, was born.
1973 Egypt launched a coordinated attack against Israel to reclaim land lost in the Six Day War. The Ramadan War Yom Kippur War started at 2:05 pm that day.
1976 Cubana Flight 455 crashed into the Atlantic Ocean after two bombs, placed on board by terrorists with connections to the CIA, exploded. All 73 people on-board were killed.
1976 New Premier Hua Guofeng ordered the arrest of the Gang of Four and associates and ended the Cultural Revolution in China.
1976 Massacre of students gathering at Thammasat University in Bangkok, Thailand to protest the return of ex-dictator Thanom, by a coalition of right-wing paramilitary and government forces, triggering the return of the military to government.
1977 In Alicante, Spain, fascists attacked a group of MCPV militants and sympathisers, and one MCPV sympathiser was killed.
1977 The first prototype of the MiG-29, designated 9-01, made its maiden flight.
1979 Pope John Paul II beaome the first pontiff to visit the White House.
1981 President of Egypt Anwar al-Sadat was assassinated.
1985 PC Keith Blakelock was murdered as riots erupted in the Broadwater Farm suburb of London.
1987 Fiji became a republic.
1995 51 Pegasi was discovered to be the first major star apart from the Sun to have a planet (and extrasolar planet) orbiting around it.
2000 Yugoslav president Slobodan Milošević resigned.
2000 Argentine vice president Carlos Álvarez resigned.
2002 The French oil tanker Limburg was bombed off Yemen.
2007 Jason Lewis completed the first human-powered circumnavigation of the globe.
Sourced from NZ History Online & Wikipedia