Congress creates OSHA, the Occupational Safety and Health Administration. The AFL-CIO sets April 28 as “Workers Memorial Day” to honor the hundreds of thousands of workers killed and injured on the job every year - 1970.

The federal Coal Mine Health and Safety Act is enacted - 1970

Five days into the Post Office’s first mass work stoppage in 195 years, President Nixon declares a national emergency and orders 30,000 troops to New York City to break the strike. The troops didn’t have a clue how to sort and deliver mail: a settlement came a few days later - 1970