Abolitionist John Brown leads 18 men, including five free blacks, in an attack on the Harper's Ferry ammunition depot, the beginning of guerilla warfare against slavery - 1859

A group of "puddlers" -- craftsmen who manipulated pig iron to create steel -- met in a Pitsburgh bar and formed The Iron City Forge of the Sons of Vulcan. It was the strongest union in the U.S. in the 1870s, later merging with two other unions to form what was to be the forerunner of the United Steel Workers - 1858

Clarence Darrow was an American lawyer who became famous in the 19th century for high profile representations of trade union causes. Born in April 18, 1857 and Died March 13, 1938.