According to inscriptions describing the reforms of the Sumerian king Urukagina of Lagash (ca. 2300 BC), he is said to have abolished the former custom of polyandry in his country, on pain of the woman taking multiple husbands being stoned with rocks upon which her crime is written.

Polyandry in human relationships occurs or has occurred in Tibet, Canadian Arctic, northern parts of Nepal, Nigeria  Bhutan, parts of India (Ladakh, Zanskar), the Nymba, and Sri Lanka, and is known to have been present in some pre-contact Polynesian societies, though probably only among higher caste women. It is also encountered in some regions of Mongolia, among the Mosuo people in China, and in some Sub-Saharan African such as the Maasai people in Kenya and northern Tanzania and American indigenous communities. Polyandry has been practised in several cultures — in the Jaunsar region in Uttarakhand, among the Nairs, Theeyas and Toda of South India,  and the Nishi of Arunachal Pradesh.  The Guanches, the first known inhabitants of the Canary Islands, practiced polyandry until their disappearance. In other societies, there are people who live in de facto polyandrous arrangements that are not recognized by the law. Saskatchewan Canada is the only jurisdiction in North America to have "judicially sanctioned" polyandrous unions at a family law court level.



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Polygamy (from p???? ??µ?? polys gamos, translated literally in Late Greek as "often married") is a form of marriage in which a person has more than one spouse at the same time, as opposed to monogamy in which a person has only one spouse at a time. When a man has more than one wife, the relationship is called polygyny; and when a woman has more than one husband, it is called polyandry. If a marriage includes multiple husbands and wives, it can be called group marriage.

The term is used in related ways in social anthropology, sociobiology, sociology, as well as in popular speech. In social anthropology, polygamy is the practice of a person's making him/herself available for two or more spouses to mate with. In contrast, monogamy is a marriage consisting of only two parties. Like monogamy, the term is often used in a de facto sense, applying regardless of whether the relationships are recognized by the state (see marriage for a discussion on the extent to which states can and do recognize potentially and actually polygamous forms as valid). In sociobiology, and zoology polygamy is used in a broad sense to mean any form of multiple mating.