Social institutions that have been around for thousands of years generally change slowly, when they change at all. But that's not the way things have been playing out with marriage and family since the middle of the 20th Century. Some scholars argue that in the past five decades, the basic architecture of these age-old institutions has changed as…

During the past century the U.S. family system has seen vast changes--in marriage and divorce rates, cohabitation, childbearing, sexual behavior, and women's work outside the home. Andrew Cherlin reviews these historic changes, noting that marriage remains the most common living arrangement for raising children, but that children, especially poor…