Presidential Key Events
Retrieved 5.12.2015 from http://millercenter.org/president/mckinley/key-events
06/01/1898: Congress passes the Erdman Arbitration Act, which authorizes government mediation between interstate carriers and their employees. The legislation prohibits interstate carriers from discriminating against or blacklisting union laborers. The Supreme Court would rule the Erdman Act unconstitutional in June 1908.