Quotes Donut - Not until the beginning of the 20th century did Europe's urban populations finally become self-sustaining: before then, constant immigration of healthy peasants from the countryside was necessary to make up for the constant deaths of city dwellers from crowd diseases.

Not until the beginning of the 20th century did Europe's urban populations final... - Jared Diamond - Quotes Donut

Written By Jared Diamond

Not until the beginning of the 20th century did Europe's urban populations finally become self-sustaining: before then, constant immigration of healthy peasants from the countryside was necessary to make up for the constant deaths of city dwellers from crowd diseases.

9 Reads • November 21, 2020