historyanalysisThe Conversation: Arts + Culture (US)19th century · United States
How organized labor shames its traitors − the story of the ‘scab’
A scab is a worker who crosses a picket line, breaks a strike, or refuses to join a union. The word dates back to medieval Europe, where scabbed skin was linked to a corrupt character, and English writers used it for a scoundrel. American workers adopted it in the 19th century, and by the 1880s unions and periodicals used it routinely against anyone who cooperated with employers. Jack London's 1904 essay The Scab argued that most strikebreakers act from economic necessity, not malice, because they cannot get work on the same terms. The label was also applied unfairly to Black workers, who were often shut out of unions and had to take jobs during strikes.
The term shows how unions built solidarity by shaming defectors, and how that same pressure can divide workers. Canada's 2024 anti-scab law, which limits employers' use of replacement workers during strikes, is one policy response to that tension.
The Conversation
Illustrative photo · Brotherhood of Locomotive Engineers (U.S.), Public domain, via Wikimedia Commons
