The Case for the Family II
"In his remarkable book The Rise of Christianity, the American sociologist of religion Rodney Stark explains how an obscure sect with just 40 converts in the year 30AD became the official religion of the Roman empire by 300. The standard answer to this question is that the emperor Constantine had a vision which led to his conversion and an embrace of Christianity. Stark demonstrates the flaws in this "great man" portrait of history. Christianity, he says, expanded at the dramatic rate of 40 per cent a decade for over two centuries, and this upsurge was only partly the result of its appeal to the wider population of Hellenistic pagans. Christian demography was just as important. Unlike the pagans, Christians cared for their sick during plagues rather than abandoning them, which sharply lowered mortality. In contrast to the "macho" ethos of pagans, Christians emphasised male fidelity and marriage, which attracted a higher percentage of female converts, who in turn raised more Christian children. Moreover, adds Stark, Christians had a higher fertility rate than pagans, yielding even greater demographic advantage."
Great article; more here. Rodney Stark is one of my favorite authors re an authentic vision for the Christian family in light of the mandates of Christ.