American Labor Union

The American Labor Union (ALU) was a radical labor organization launched as the Western Labor Union (WLU) in 1898. The organization was established by the Western Federation of Miners (WFM) in an effort to build a federation of trade unions in the aftermath of the failed Leadville Miners' Strike of 1896. The group changed its name from WLU to the more familiar ALU moniker in 1902 at its fifth annual convention. The group had a peak membership of about 43,000 — of which 27,000 were members of the WFM. The ALU was a precursor to the Industrial Workers of the World (IWW), established in 1905, which effectively terminated it.