On this week in Labor... Trial of 101 Wobblies, charged with opposing the draft and hindering the war effort, begins in Chicago - 1918
Norris-La Guardia Act restricts injunctions against unions, bans yellow dog contracts, which require newly-hired workers to declare they are not union members and will not join one - 1932
Chicago by some 3,000 delegates from 58 unions and other organizations - 1974