King Charles II chartered the Royal Society in London, England.
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Twitter was launched to the public.
US President Herbert Hoover slashed his salary by 20% and his cabinet members by 15% due to the Economic Act signed on June 30, 1932.
The Battle of Grunwald began.
President Jimmy Carter's brother Billy registered as a foreign agent in Libya.
'Harry Potter' and the Half-Blood Prince” movie by J.K. Rowling was released.
