Tom Holland, in his book Dominion: How the Christian Revolution Remade the World, have pointed out just how much modern norms owe to Christianity, even if they’re not explicitly Christian.

I’m trying to emphasize the presence of the past, how the dead live in us. Research by Alberto Alesina, Paola Giuliano, and Nathan Nunn found that people who are descended from those who practiced plow-heavy agriculture tend to live in cultures that have strongly defined gender roles, because it was mostly men who drove the plow. On the other hand,