Women in Portugal received full legal equality with Portuguese men as mandated by Portugal's constitution of 1976, which in turn resulted from the Revolution of 1974. Women were allowed to vote for the first time in Portugal in 1931 under Salazar's Estado Novo. The right for women to vote was later broadened twice under the Estado Novo. The first time was in 1946 and the second time in 1968 under Marcelo Caetano, law 2137 proclaimed the equality of men and women for electoral purposes. By the early part of the 1990s, many women of Portugal became professionals, including being medical doctors and lawyers, a leap from many being merely office employees and factory workers.