by Lenny Flank In the early United States, labor unions were outlawed—they were considered to be illegal conspiracies in restraint of “free trade.” That changed in 1842, when, in the Hunt case, the courts ruled that collective bargaining was legal and that workers could form unions and associations. At first, labor unions were small, weak, and rarely extended beyond the … [Read more...] about May Day History: The Haymarket Riot