April 10 -- Union Communications Services, Inc.
Birth date of Frances Perkins, named Secretary of Labor under President Franklin D. Roosevelt in 1933, becoming the first woman to hold a cabinet-level office - 1880
A total of 133 people, mostly women and girls, are killed when an explosion in the loading room tears apart the Eddystone Ammunition Works in Eddystone, Pa., near Chester. Of the dead, 55 were never identified - 1917
Birth of Dolores Huerta, a co-founder, with Cesar Chavez, of the United Farm Workers - 1930
Dancers from the Lusty Lady Club in San Francisco’s North Beach ratify their first-ever union contract by a vote of 57-15, having won representation by SEIU Local 790 the previous summer. The club, which later became a worker-owned cooperative, closed in 2013 - 1997
Tens of thousands of immigrants demonstrate in 100 U.S. cities in a national day of action billed as a campaign for immigrants’ dignity. Some 200,000 gathered in Washington, D.C. - 2006
(Mobilizing Against Inequality: Unions, Immigrant Workers, and the Crisis of Capitalism: Are immigrant workers themselves responsible for low wages and shoddy working conditions? Should unions expend valuable time and energy organizing undocumented workers? Unions in Germany, France, the United Kingdom, and the United States have taken various approaches to confront the challenges of this significant segment of the workforce. As U.S. immigration policy is debated, readers will gain insight into how all workers benefit when wages and working conditions for immigrant workers are improved.)