On 31 October, the Nanchang branch of the Tongmenghui led New Army units in a successful uprising. They established the Jiangxi Military Government. Li Liejun was elected as the military governor. Li declared Jiangxi as independent and launched an expedition against Qing official Yuan Shikai.
On 31 October 1918, the Aster Revolution in Budapest brought Hungarian liberal aristocrat Mihály Károlyi, a supporter of the Allied Powers, to power. The Hungarian Royal Honvéd army still had more than 1.400.000 soldiers when Mihály Károlyi was announced as prime minister of Hungary. Károlyi yielded to U.S. President Woodrow Wilson's demand for pacifism by ordering the disarmament of the Hungarian army. This happened under the direction of Béla Linder, minister of war in the Károlyi government. Due to the full disarmament of its army, Hungary remained without a national defence at a time of particular vulnerability.
By 31 October 1960, most guerrilla infiltrations and supply drops directed by the CIA into Cuba had failed, and developments of further guerrilla strategies were replaced by plans to mount an initial amphibious assault, with a minimum of 1,500 men. The election of John Kennedy as US President sped up preparations for the invasion; Kennedy reached out to Cuban exiles who supported Batista and hinted he was willing to bring Batista back to power in order to overthrow Castro.
In late October, the Beatles began a five-day tour of Sweden. On their return to the UK on 31 October several hundred screaming fans greeted them in heavy rain at Heathrow Airport. Around 50 to 100 journalists and photographers as well as representatives from the BBC also joined the airport reception, the first of more than 100 such events.
On October 31, Laura Ann Aime, also 17 years old girl, disappeared 25 miles (40 km) south in Lehi after leaving a café just after midnight. Her naked body was found by hikers 9 miles (14 km) to the northeast in American Fork Canyon on Thanksgiving Day.
During Operation Muharram (1–21 November), the Iranians captured part of the Bayat oilfield with the help of their fighter jets and helicopters, destroying 105 Iraqi tanks, 70 APCs, and 7 planes with few losses. They nearly breached the Iraqi lines but failed to capture Mandali after the Iraqis sent reinforcements.
On 31 October 1992, Pope John Paul II expressed regret for how the Galileo affair was handled, and issued a declaration acknowledging the errors committed by the Catholic Church tribunal that judged the scientific positions of Galileo Galilei, as the result of a study conducted by the Pontifical Council for Culture.
Severe Tropical Storm Linda, also known as Typhoon Linda, Cyclonic Storm BOB 08, or in the Philippines as Tropical Depression Openg, was the worst typhoon in southern Vietnam in at least 100 years, killing thousands of people and leaving extensive damage. It formed on October 31, 1997 in the South China Sea, between Indochina and the Philippines.
Boeing 767-366ER, EgyptAir Flight 990, flying from Los Angeles International Airport, United States, to Cairo International Airport, Egypt, with a stop at John F. Kennedy International Airport, New York City, crashed into the Atlantic Ocean south of Nantucket Island, Massachusetts, killing all 203 passengers and 14 crewmembers. The National Transportation Safety Board determined that the probable cause of the crash was a deliberate action by the relief first officer in response to his removal from international service within Egyptair, a finding disputed by Egyptian authorities who maintain another cause of the accident
An Airbus A321-231, Metrojet Flight 9268, crashed in the Sinai Peninsula after departing Sharm el-Sheikh International Airport, Egypt, On October 31, 2015, en route to Pulkovo Airport, Saint Petersburg, Russia. All 217 passengers and 7 crewmembers were killed. A branch of the Islamic State of Iraq and the Levant claimed responsibility for bringing down the jet, and a Russian investigation concluded that a bomb was detonated inside the plane at a high altitude.