July 20

New York City newsboys, many so poor that they were sleeping in the streets, begin a 2-week strike. Several rallies drew more than 5,000 newsboys, complete with charismatic speeches by strike leader Kid Blink, who was blind in one eye. The boys had to pay publishers up front for the newspapers; they were successful in forcing the publishers to buy back unsold papers - 1899
 
Two killed, 67 wounded in Minneapolis truckers' strike—"Bloody Friday" - 1934
 
Postal unions, Postal Service sign first labor contract in the history of the federal government—the year following an unauthorized strike by 200,000 postal workers - 1971