January 6 – The first Montessori school and daycare center for working class children opens in Rome
March – The 1907 Romanian Peasants’ Revolt results in possibly as many as 11,000 deaths
April 17 – The first Minas Geraes-class battleship is laid down for Brazil, by Armstrong Whitworth on the River Tyne, in England, triggering the South American dreadnought race.
June 10–August 10 – The Peking to Paris motor race is won by Prince Scipione Borghese, driving a 7-litre Itala
June 15 – The Second Hague Peace Conference opens
June 26 – Bolsheviks attack a cash-filled bank coach in the centre of Tiflis, Georgia, killing 40 people
July 21 – The SS Columbia sinks after colliding with the lumber schooner San Pedro, off Shelter Cove, California, resulting in 88 deaths
August 29 – The partially completed superstructure of the Quebec Bridge collapses entirely, claiming the lives of 76 workers
December 6 – A coal mine explosion kills 362 workers in Monongah, West Virginia
December 17 – Ugyen Wangchuck becomes the first Druk Gyalpo (king of Bhutan)
December 21 – In Chile, soldiers fire at striking mineworkers gathered in the Santa María School in Iquique. Over 2,000 are killed.