Gov. Jerry Brown signs the California Agricultural Labor Relations Act, the first law in the U.S. giving farmworkers collective bargaining rights. The legislation came after years of effort by the United Farm Workers union - 1975

The U.S. Supreme Court decides in favor of sales clerk Leura Collins and her union, the Retail Clerks, in NLRB v. J. Weingarten Inc. – the case establishing that workers have a right to request the presence of their union steward if they believe they are to be disciplined for a workplace infraction - 1975

Oil, Chemical and Atomic Workers Union activist Karen Silkwood is killed in a suspicious car crash on her way to deliver documents to a newspaper reporter during a safety investigation of her Kerr-McGee plutonium processing plant in Oklahoma. - 1974