By Michael J. Rosenfeld Professor of Sociology Stanford University mrosenfe@stanford.edu, 415.205.1892 Prior to 1970, the overwhelming majority of all couples were same-race married couples. Couples who lived together outside of marriage, whether heterosexual or same-sex, were practically invisible. Inter-racial marriages were extremely rare. In fact, until 1967, many states in the US had laws against interracial […]