The Great Dock Strike of 1889 in London is remembered as the foundation of the modern trade union movement. It was led by social democrats like Ben Tillett and future member of the Liberal cabinet John Burns, and by the future syndicalist and Communist Tom Mann. Its centenary in 1989 was celebrated by the Transport and General Workers’ Union, now part of Unite!, which traced its origins back to the strike. How-ever, for the nascent anarchist movement in Britain it was also a significant event which turned abstract talk of revolution and a simple advocacy of expropriation and rioting into what ultimately became anarcho-syndicalism.
Anarcho-syndicalism, a theory and practice of working class revolution, was developed not by scholars working in libraries but by the workers themselves. The anarcho-syndicalist movement of the 20th century extended to all the industrialized countries of the world and even agricultural regions. This was not a fringe phenomenon but involved millions of workers.