Monogamy Monogamy is a form of marriage in which an individual has only one spouse during their lifetime or at any one time serial monogamy. Anthropologist Jack Goody 's comparative study of marriage around the world utilizing the Ethnographic Atlas found a strong correlation between intensive plough agriculture, dowry and monogamy. This pattern was found in a broad swath of Eurasian societies from Japan to Ireland. The majority of Sub-Saharan African societies that practice extensive hoe agriculture, in contrast, show a correlation between " bride price " and polygamy. In all cases, the second marriage is considered legally null and void. Besides the second and subsequent marriages being void, the bigamist is also liable to other penalties, which also vary between jurisdictions.
Arranged marriage - Wikipedia
Arranged marriages across feudal lords, city states and kingdoms, as a means of establishing political alliances, trade and peace were common in human history. Various cultures, particularly some wealthy royals and aristocratic families, arranged marriages in part to conserve or streamline the inheritance of their wealth. This sort of arranged marriage, in theory, enabled the girl to escape poverty and the wealthy family to get free labor and a daughter-in-law. Zhaozhui was a related custom by which a wealthy family that lacked an heir would arrange marriage of a boy child from another family. The boy would move in with the wealthy family, take on the surname of the new family , and marry the family's daughter. Such arranged marriages helped maintain inheritance bloodlines.