Guthrie traveled with workers and learned their traditional songs, earning himself the nickname "Dust Bowl Troubadour."
Around the globe, 215 million children are engaged in child labor, including an estimated six million in forced labor.
The George Washington Bridge, a suspension bridge spanning the Hudson River and connecting Manhattan in New York City to Fort Lee in N.J., was officially inaugurated.
Mexico has had, on paper, progressive labor laws. However, workers have trouble defending their interests even where there is a union.
The number of fatal occupational injuries nationwide dropped to 4,609 in 2011.
Professors at Duquesne University in Pittsburgh, a prominent Catholic institution, voted to unionize with the Steelworkers. But the struggle isn't over yet.
Using unusually strong language, AFL-CIO President Richard Trumka waded into the neck-and-neck Massachusetts U.S. Senate.
Workers in transparent rain ponchos hand out pale yellow fliers to people preparing to enter Lee Kan's Asian Grill in the Collierville Shopping Center.
Most people don't realize that a legendary suffragette, Sylvia Pankhurst, lived well into the mid-20th century.
The problems of speedup and other dangerous assembly line practices were skewered in Charlie Chaplin's classic film "Modern Times."