comes from two Latin words:
con meaning shared
sanguis that means blood.
Consanguinity describes a relationship between two people who share a common ancestor:
a ‘shared blood’ relationship; for example, a relationship between two cousins. The most common form of a consanguineous relationship or marriage is between first cousins and in some societies, can account for a large proportion of relationships.
Traditionally, some cultures have practised and continue to practise marriage between relatives such as cousins as a means of strengthening family ties and retaining property within the family.
Albert Einstein married his first cousin and so did Charles Darwin.
US State Laws Regarding Marriages Between First Cousins
|Cousin marriage legal||First cousin marriage prohibited||Allowed under certain circumstances|
District of Columbia
|New JerseyNew Mexico
First cousin marriage is allowed in these states under the following circumstances:
Arizona- if both are 65 or older, or one is unable to reproduce.
Illinois- if both are 50 or older, or one is unable to reproduce.
Indiana- if both are at least 65.
Maine- if couple obtains a physician’s certificate of genetic counseling.
Utah- if both are 65 or older, or if both are 55 or older and one is unable to reproduce.
Wisconsin- if the woman is 55 or older, or one is unable to reproduce.
*North Carolina- First cousin marriage is legal. Double cousin marriage is prohibited
First Cousins – two individuals who have the same grandparents.
Second Cousins – two individuals who have the same great-grandparents
Third Cousins – two individuals who have the same great-great grandparents, and so on down the line..
*paging genetic counselors, occupational therapists, speech therapists, and special child care professionals.