Founding of the Communist Party of Vietnam
A conference chaired by Nguyễn Ái Quốc (Hồ Chí Minh) in Hong Kong merges Vietnamese communist groups into the Communist Party of Vietnam.
A conference chaired by Nguyễn Ái Quốc (Hồ Chí Minh) in Hong Kong merges Vietnamese communist groups into the Communist Party of Vietnam.
Vietnamese colonial soldiers organised by the VNQDĐ mutiny at Yên Bái; the revolt fails and Nguyễn Thái Học is executed.
Clyde Tombaugh discovers Pluto at Lowell Observatory; in 2006 it is reclassified as a dwarf planet.
Gandhi leads a nonviolent march to Dandi to make salt in defiance of the British salt tax, launching the civil disobedience movement.
The first World Cup is held in Uruguay; the hosts win the title, beating Argentina 4–2 in the final.
Ras Tafari Makonnen was crowned Emperor of Ethiopia as Haile Selassie I; he reigned until 1974 and became a symbol of African independence.
After the 1857 rebellion, the Government of India Act transfers rule from the East India Company to the British Crown; the Mughal Empire formally ends.