📜 History & Origins
International Workers' Day commemorates the 1886 Haymarket affair in Chicago and was established as a workers' holiday by the Second International in 1889. France officially adopted 1 May as a paid holiday in 1919, the day after the eight-hour working day was won following massive strikes. The Vichy regime renamed it 'Fête du Travail et de la Concorde Sociale' in 1941, a name that persists today, and in 1947 it became the only jour férié where paid leave is legally mandatory for all.