Maybe plumbing, not biology, is destiny. More than 70 years after women won the vote, the U.S. Senate chamber still has no women's bathroom. Even the Democratic cloakroom in the House has no ladies' room, leaving female Representatives with a hike to the Congressional Women's Reading Room, where there are all of three toilets. Future archaeologists, studying the pipes and bathroom fixtures of Capitol Hill, may conclude that late-20th century America was a fortress of patriarchy on a par with Saudi Arabia.
They would have it wrong, of course. Measured in terms of the number of feminist organizations, journals, support groups...