Which factor was NOT a contributor to the doubling of the European population between 1100 and 1445?

Question

Quizplus · Accepted Answer

The doubling of the European population between 1100 and 1445 was influenced by economic growth, warm temperatures, new farming techniques, and fewer epidemics, which improved living conditions and food production. Unification under Christianity did not directly contribute to population growth in the same material or environmental ways as the other factors.

Which Factor Was NOT a Contributor to the Doubling of the European