People did not used to marry early in the good old times
If you look at a plot of age of first marriage and age of first birth (usually following marriage), you might get the idea that the 1960s cultural revolution, feminism…
When did NW Europeans become WEIRD? Not from lack of inbreeding
Joseph Henrich published two books based on the Hajnal line or WEIRD (Western Educated, Industrialized, Rich, Democratic) personality cluster idea (The Secret of Our Success 2016; The WEIRDest People in…