American nightclub

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?




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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.