id author title date pages extension mime words sentences flesch summary cache txt en-wikipedia-org-4536 Monogamy - Wikipedia .html text/html 11937 1754 64 Close family (endogamy) are the preferred marriage partners to keep property within the group.[53] A molecular genetic study of global human genetic diversity argued that sexual polygyny was typical of human reproductive patterns until the shift to sedentary farming communities approximately 10,000 to 5,000 years ago in Europe and Asia, and more recently in Africa and the Americas.[54] A further study drawing on the Ethnographic Atlas showed a statistical correlation between increasing size of the society, the belief in "high gods" to support human morality, and monogamy.[55] A survey of other cross-cultural samples has confirmed that the absence of the plough was the only predictor of polygamy, although other factors such as high male mortality in warfare (in non-state societies) and pathogen stress (in state societies) had some impact.[56] ./cache/en-wikipedia-org-4536.html ./txt/en-wikipedia-org-4536.txt