March 19

March 19 
U.S. Supreme Court upholds the constitutionality of the Adamson Act, a federal law that established an eight-hour workday, with overtime pay, for interstate railway workers. Congress passed the law a year earlier to avert a nationwide rail strike - 1917

In an effort to block massive layoffs and end a strike, New York City moves to condemn and seize Fifth Avenue Coach, the largest privately owned bus company in the world - 1962 

Three workers are killed, five injured during a test of the Space Shuttle Columbia - 1981