| Sit-down strikes were used often in the 1930s by workers in the steel, automobile, and rubber industries. Sit-down strikes effectively paralyzed businesses because, although employees showed up at work, they would not carry out their daily tasks. Thus employers could not hire people to take the place of striking workers. In 1937, autoworkers in Flint, Michigan had a sit-down strike, shown here, at the Chevrolet Plant. The Supreme Court made these strikes illegal in 1939. |