The following events occurred in October 1910:

October 1, 1910 (Saturday) Twenty-one employees of the Los Angeles Times were killed by the detonation of a time bomb at 1:07 a.m. local time outside of the Times offices. The 16 sticks of dynamite triggered the explosion of underground gas lines and a subsequent fire. Twenty-three American sailors, from the battleship , drowned when their launch capsized. Federico Boyd became acting president of Panama. A coal mine explosion at Palaú, in the Mexican state of Coahuila, killed 200 workers. The first mid-air collision between two airplanes occurred in Milan, when an Antoinette monoplane, piloted by Rene Thomas of France, rammed a Farman biplane being flown by Bertram Dickson. Both pilots were injured in the crash. Born: Bonnie Parker, American outlaw and partner of Clyde Barrow. Both would be killed in 1934.

October 1910

October 2, 1910 (Sunday) The asteroid Interamnia, seventh largest in the Solar System (300 kilometers in diameter) was discovered by Italian astronomer Vincenzo Cerulli from an observatory in Teramo.

October 1910

October 3, 1910 (Monday) The Tsucheng-yuan, also known as the Imperial Senate of China, was convened for the first time, with an opening presided over by the regent, Prince Chun. The national assembly had 202 members, of whom 100 were elected by provincial assemblies, and the others were appointed by the regent. Died: Lucy Hobbs Taylor, 77, first American woman dentist to have received a D.D.S. "Johann F.", 59, a patient of Dr. Alois Alzheimer at the University of Munich. The case of dementia in Johann F. was described by Dr. Alzheimer in 1911, and the name given to the illness was popularized. Another source describes Auguste Deter, who died in 1906, as the original patient of Dr. Alzheimer. Dr. Miguel Bombarda, 59, Portuguese psychiatrist, politician and anti-monarchist, was shot and killed by one of his patients two days before his co-conspirators launched the revolution that ended Portugal's monarchy.

October 1910

October 4, 1910 (Tuesday) King Manuel II of Portugal and the Queen Mother were forced to flee Lisbon, after the Army and Navy joined in a coup by the Republican movement and began shelling the royal palace. Thirty-seven people were killed and 30 injured near Staunton, Illinois, in a collision between two interurban trolleys.

October 5, 1910 (Wednesday) Teófilo Braga was named as the first President of Portugal by revolutionists who abolished the monarchy. Russia's Prime Minister, Pyotr Stolypin, flew as a passenger in an airplane at St. Petersburg. Six days later, former American President Theodore Roosevelt would fly as an airplane passenger in St. Louis. Francisco I. Madero, who had challenged Porfirio Díaz in the Mexican presidential election earlier in the year, fled to San Antonio, Texas, where he then issued the Plan de San Luis Potosí, calling for revolution against the Diaz government. Charles H. Harris and Louis R. Sadler,

October 6, 1910 (Thursday) Former King Manuel II and other members of Portugal's House of Braganza arrived safely at Gibraltar on board the royal yacht Amelia. Eleftherios Venizelos was elected Prime Minister of Greece for the first of his seven non-consecutive terms. Baseball outfielder Bill Collins of the Boston Doves became the first major league player to hit for a "natural cycle" (a single, a double, a triple and a home run in sequential order). Only 13 other players have accomplished the feat, the most recent being Gary Matthews, Jr., in 2006.

October 7, 1910 (Friday) Hundreds of people were killed after forest fires broke out in northern Lake of the Woods County, Minnesota, destroying the towns of Baudette, Spooner, Graceton, and Pitt Trains sent by the Canadian Pacific Railway evacuated many of the townspeople to Ontario, where the fires caused additional damage. By October 11, more than 200 bodies had been recovered, the death toll was estimated at 400, and other towns (Roosevelt, Longworth, Swift, Ziplie, Solar, Cedar Spur, Gravel Pit Spur, and Engle) were reported destroyed. Born: Ngo Dinh Nhu, South Vietnamese political boss and brother of President Ngo Dinh Diem; both were assassinated in a coup in 1963.

October 8, 1910 (Saturday)