The IWW was started in 1905 in
 at a big meeting of many unions. For its first few decades, the IWW had many thousands of members who led many of the most important fights against
bosses. The United States
government and other unions often worked together to enforce more
labor relations. Partly because this happened membership dropped and there were few members for many years after. Today the IWW has grown back to a few thousand workers and has members in most
continents of the world.