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A cousin is a relative that is the child of a parent's sibling; this is more specifically referred to as a first cousin.. More generally, in the kinship system used in the English-speaking world, a cousin is a type of relationship in which relatives are two or more generations away from their most recent common ancestor.
It is common to identify one's first- and second-degree cousins, and sometimes third-degree cousins. It is seldom possible to identify fourth-degree cousins, since few people can trace their full family tree back more than four generations.
States have various laws regarding marriage between cousins and other close relatives, [201] which involve factors including whether or not the parties to the marriage are half-cousins, double cousins, infertile, over 65, or whether it is a tradition prevalent in a native or ancestry culture, adoption status, in-law, whether or not genetic ...
First, second, and third cousins (and so on unto infinity cousins) are an equal number of generations removed from the common ancestor. First cousins are both the second generation removed from ...
first cousins (which is counted as fourth degree of kinship in Roman civil law tradition) In Imperial China (221 BCE to 1912), marriage between first cousins was partially allowed. Marrying the child of one’s paternal aunt, maternal uncle, or maternal aunt was generally accepted in Chinese history during most of China’s dynastic era.
The coefficient of relationship is a measure of the degree of consanguinity (or biological relationship) between two individuals. The term coefficient of relationship was defined by Sewall Wright in 1922, and was derived from his definition of the coefficient of inbreeding of 1921.
The Republican-led Tennessee Legislature has overwhelmingly voted to send GOP Gov. Bill Lee a proposal that would ban marriage between first cousins. The House cast a 75-2 vote Thursday on the ...
The connection was first acknowledged by Su in 2020, and more recently, has been fleshed out in detail by Jean Wu, a Taiwanese genealogist. ... they are first cousins once removed, which refers to ...