Ever since Lucy Stone decided to retain her surname at marriage in 1855, women in America have tried to do the same. But their numbers were extremely low until the 1970s. The increased age at first marriage, rising numbers with professional degrees and Ph.D.'s, the diffusion of 'the Pill,' state...

The fraction of U.S. college graduate women entering professional programs increased substantially around 1970 and the age at first marriage among all U.S. college graduate women soared just after 1972. We explore the relationship between these two changes and how each was shaped by the...