Poster from Hungary cold war era. The text on the poster reads:”Long Live May 1″. May 1st. is worldwide Labour Day.
Labour Day (or International Worker’s Day) is a celebration of labourers and the working classes that is promoted by the international labour movement, socialists and anarchists.
Labour day was established in 1890 as an international protest day for demanding a 8 hour working day, labour rights and for keeping the peace.