[sima_yi]

Except...didn’t the little Ice Age start in the 1200s?

Correct. The Little Ice Age started circa 1270 - 1300, and lasted until 1850.

[milwguy]

Don’t let facts get in the way of hysteria.

[Verginius Rufus]

The cooling temperatures doomed the Norse-speaking Greenlanders. They were probably extinct before 1500 (the last contact with them was somewhat before then), so "the Little Ice Age" must have started well before 1500.

A date of ca. 1270-1300 sounds right--clearly caused by the Sicilian Vespers (1282), the revolt against the rule of Charles of Anjou. Charles was a white man (younger brother of St. Louis IX), so the evil white man is still to blame.