The British Parliament enacts the Stamp Act of 1765 on the North American colonies to help repay war debts. This tax on printed goods helped rally the American opposition to taxation without representation under the British crown.
In horse racing's "Race of the Century", Seabiscuit defeats the 1:4 favorite War Admiral, the reigning Triple Crown winner, at Pimlico Race Course in Baltimore.
United States successfully detonated the first thermonuclear weapon in the Enewetak Atoll of the Marshall Islands. Codenamed Ivy Mike, the first hydrogen bomb recorded a yield of 10.4 megatons, approximately 500 times the yield of the first atomic bombs dropped on Japan.
