In Sex and Culture (1934), Unwin studied 80 primitive tribes and 6 known civilizations through 5,000 years of history and found a positive correlation between the cultural achievement of a people and the sexual restraint they observe.
In Sex and Culture (1934), Unwin studied 80 primitive tribes and 6 known civilizations through 5,000 years of history and found a positive correlation between the cultural achievement of a people and the sexual restraint they observe.
