Maternity Protection Convention, 1919Maternity Protection Convention, 1919 is an International Labour Organization Convention.It was established in 1919:ModificationThe principles contained in the convention were subsequently revised and included in ILO Convention C103, Maternity Protection Convention (Revised), 1952, and in Maternity Protection Convention, 2000.RatificationsAs of 2013, the convention had been ratified by 34 states. Of the ratifying states, eight have subsequently denounced the treaty.