It was established in 1952 , with the preamble stating : Having decided upon the adoption of certain proposals with regard to maternity protection , ... The convention revised Convention C3 on definition of women , to be also irrespective of race and creed , not only of age , marriage status and nationality , and was subsequently revised in 2000 by Convention C183 on minimum condition of maternity leave ( from 12 weeks to 14 weeks ) and women 's rights
Convention C183
Maternity Protection Convention, 2000
Maternity Protection Convention (Revised), 1952