What is Polygamy marriage ?

Polygamy is a marriage which includes more than two partners.When a man is married to more than one wife at a time, the relationship is called polygyny, and there is no marriage bond between the wives; and when a woman is married to more than one husband at a time, it is called polyandry, and there is no marriage bond between the husbands. If a marriage includes multiple husbands and wives, it can be called group marriage.

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. As noted above, Anthropologist Jack Goody's comparative study of marriage around the world utilizing the Ethnographic Atlas found that the majority of Sub-Saharan African societies that practice extensive hoe agriculture show a correlation between "Bride price," and polygamy. 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.

Marriages are classified according to the number of legal spouses an individual has. The suffix "-gamy" refers specifically to the number of spouses, as in bi-gamy (two spouses, generally illegal in most nations), and poly-gamy (more than one spouse).

Societies show variable acceptance of polygamy as a cultural ideal and practice. According to the Ethnographic Atlas, of 1,231 societies noted, 186 were monogamous; 453 had occasional polygyny; 588 had more frequent polygyny; and 4 had polyandry. However, as Miriam Zeitzen writes, social tolerance for polygamy is different from the practice of polygamy, since it requires wealth to establish multiple households for multiple wives. The actual practice of polygamy in a tolerant society may actually be low, with the majority of aspirant polygamists practicing monogamous marriage. Tracking the occurrence of polygamy is further complicated in jurisdictions where it has been banned, but continues to be practiced (de facto polygamy).

Zeitzen also notes that Western perceptions of African society and marriage patterns are biased by "contradictory concerns of nostalgia for traditional African culture versus critique of polygamy as oppressive to women or detrimental to development." Polygamy has been condemned as being a form of human rights abuse, with concerns arising over domestic abuse, forced marriage, and neglect. The vast majority of the world's countries, including virtually all of the world's developed nations, do not permit polygamy. There have been calls for the abolition of polygamy in developing countries.