Fifty years ago, the great grape strike started in Delano, when Filipino pickers walked out of the fields on September 8, 1965.
The 5,000 teachers in Seattle's public schools suspended their six-day strike amid strong displays of solidarity on their picketlines.
The strike became a bitter conflict that galvanized workers' support from around the country and internationally.
Rauner also failed to deny reports that he is considering calling on the Illinois National Guard to replace state workers in the event of a lockout or strike.
Fast food workers walked off their jobs and demonstrated in the thousands for a higher paycheck - $15 an hour.
All are employed by huge corporations that have been awarded contracts by the federal government, and all earn poverty wages.
On this date in 1966, International Association of Machinists (IAM) members across the country employed by five airlines went on strike.
In 1940, the U.S. Supreme Court ruled in Apex Hosiery Co. v. Leader that a sit-down strike was not a violation of the Sherman Anti-Trust Act.
The drivers demand that trucking firms recognize them as employees and bargain with them if they select the Teamsters.
On this date in 1968, the Memphis Sanitation Strike came to an end.