January 29 -- Union Communications Services, Inc.
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