A John Tierney article in today’s NYTimes argues that the Iraqi tradition of cousin marriage and consequent clan loyalties make it difficult to establish democracy. (See Tyler’s earlier post for a map and some other links.) Most interesting claim is that the Western taboo against cousin marriage was promoted by the church explicitly in order to reduce loyalty to the clan and promote universal love. Key quote:
Cousin marriage was once the norm throughout the world, but it became taboo in Europe after a long campaign by the Roman Catholic Church. Theologians like St. Augustine and St. Thomas argued that the practice promoted family loyalties at the expense of universal love and social harmony. Eliminating it was seen as a way to reduce clan warfare and promote loyalty to larger social institutions – like the church.
By the way, recent genetic research indicates that cousin marriage does not lead to dramatically higher abnormalities in children.