June 04 -- Union Communications Services, Inc.
Massachusetts becomes the first state to establish a minimum wage - 1912
The House of Representatives approves the Taft-Hartley Act. The legislation allows the president of the United States to intervene in labor disputes. President Truman vetoed the law but was overridden by Congress - 1947
The AFL-CIO opens its new headquarters building, in view of the White House - 1956
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