Today is Wednesday, Dec. 2, the 336th day of 2015. There are 29 days left in the year.

On this date:

In 1804, Napoleon crowned himself Emperor of the French.

In 1823, President James Monroe outlined his doctrine opposing European expansion in the Western Hemisphere.

In 1859, militant abolitionist John Brown was hanged for his raid on Harpers Ferry the previous October. Artist Georges-Pierre Seurat was born in Paris.

In 1927, Ford Motor Co. unveiled its Model A automobile that replaced its Model T.

In 1939, New York Municipal Airport-LaGuardia Field (later LaGuardia Airport) went into operation as an airliner from Chicago landed at one minute past midnight.

In 1942, an artificially created, self-sustaining nuclear chain reaction was demonstrated for the first time at the University of Chicago.

In 1954, the U.S. Senate passed, 67-22, a resolution condemning Sen. Joseph R. McCarthy, R-Wis., saying he had “acted contrary to senatorial ethics and tended to bring the Senate into dishonor and disrepute.”

In 1961, Cuban leader Fidel Castro declared himself a Marxist-Leninist who would eventually lead Cuba to Communism.