Responding to unrest among Irish laborers building the Chesapeake and Ohio Canal, President Andrew Jackson orders first use of American troops to suppress a labor dispute – 1834
Six thousand railway workers strike for a union and the end of 18-hour day – 1889
Sit-down strike helps establish United Rubber Workers as a national union, Akron, Ohio – 1936
American Train Dispatchers Department granted a charter by the AFL-CIO – 1957
Dolly Parton hits number one on the record charts with “9 to 5,” her anthem to the daily grind – 1981
Newly-elected President Barack Obama signs the Lilly Ledbetter Fair Pay Act, making it easier for women and minorities to win pay discrimination suits – 2009
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