July 5
During a strike against the Pullman Palace Car Company, which had drastically reduced wages, buildings constructed for the 1893 World's Columbian Exposition in Chicago's Jackson park were set ablaze, reducing seven to ashes - 1894

Battle of Rincon Hill, San Francisco, in longshore strike. 5,000 strikers fought 1,000 police, scabs and national guardsmen. Two strikers were killed, 109 people injured. The incident, forever known as "Bloody Thursday," led to a General Strike - 1934
And this:

July 5, 1934 - Two strikers were shot and killed by police in San Francisco in what came to be known as "Bloody Thursday." They were participating in a waterfront strike that eventually culminated in a citywide walkout. Read more about the strike at
http://www.sfmuseum.org/hist4/maritime17.htmlNational Labor Relations Act, providing workers rights to organize and bargain collectively, signed by President Roosevelt - 1935
Labor history found here:
http://www.unionist.com/today-in-labor-history & here:
http://www.workdayminnesota.org/index.php?history_9_07_05_2011