The Smart:

In fact, in the late Middle Ages, it was not for religious reasons that sudden morality occurred (religion played a significant role before) - and because of the spread of syphilis.

Syphilis arrived in Europe from South America. What is Late Middle Ages? Learn the game before teaching others!
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Later Middle Ages - the period of European history in the XIV-XVI centuries.
Columbus first sailed to the Americas from August 2, 1492 to March 15, 1493.
What is the contradiction?