Giving married women an independent legal existence did not destroy heterosexual marriage. And allowing husbands and wives to construct their marriages around reciprocal duties and negotiated roles - where a wife can choose to be the main breadwinner and a husband can stay home with the children - was an immense boon to many couples.

Why do people - gay or straight - need the state's permission to marry? For most of Western history, they didn't, because marriage was a private contract between two families. The parents' agreement to the match, not the approval of church or state, was what confirmed its validity.

Marriage has been in a constant state of evolution since the dawn of the Stone Age. In the process, it has become more flexible - but also more optional.

Stephanie Coontz Quotes