Anatoly Karlin recently wrote a post criticizing my and HBD Chick’s attribution of socio-cultural-economic differences across Europe to our old friend the Hajnal line. The Hajnal line is a border that links Saint Petersburg, Russia and Trieste, Italy. In 1965, John Hajnal discovered it divides Europe into two areas characterized by different levels of nuptiality. To the west of the line, marriage […]