The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.

The U.S. Steel recognition strike of 1901 was an attempt by the Amalgamated Association of Iron, Steel and Tin Workers (the AA) to reverse its declining fortunes and organize large numbers of new members. The strike failed.

The AA had formed in 1876. It was a labor union of skilled iron and steel workers which was deeply committed to craft unionism. However, technological advances had reduced the number of skilled workers in both industries.

In 1892, the AA had lost a bitter strike at the Carnegie Steel Company's steel mill in Homestead, Pennsylvania. The Homestead strike, which culminated with a day-long gun battle on July 6 that left 12 dead and dozens wounded, led to a wave of de-unionization. From a high of more than 24,000 members in 1892, union membership had sunk to less than 8,000 by 1900.