128 convict miners, leased to a coal company under the state’s shameful convict lease system, are killed in an explosion at the Banner coal mine outside Birmingham, Ala. The miners were mostly African-Americans jailed for minor offenses - 1911
President Wilson establishes the War Labor Board, composed of representatives from business and labor, to arbitrate disputes between workers and employers during World War I - 1918
The Works Progress Administration (WPA) is approved by Congress. President Franklin Roosevelt proposed the WPA during the Great Depression of the 1930s when almost 25 percent of Americans were unemployed. It created low-paying federal jobs providing immediate relief, putting 8.5 million jobless to work on projects ranging from construction of bridges, highways and public buildings to arts programs like the Federal Writers' Project - 1935
President Harry S Truman orders the U.S. Army to seize the nation’s steel mills to avert a strike (photo). The Supreme Court ruled the act illegal three weeks later - 1952
Labor history courtesy Union Communication Services.