The political slogan
Workers of the world, unite! is one of the most famous rallying cries from the
Communist Manifesto (1848), by
Karl Marx and
Friedrich Engels (, literally "Proletarians of all countries, unite!" but soon popularized in English as "Workers of the world, unite! You have nothing to lose but your chains!" A variation of this phrase ("Workers of all lands, unite") is also inscribed on Marx's tombstone.