Final answer:
The primary cause of the Great Famine of 1315-1322 was prolonged rainfall killing crops through flooding in northern Europe, leading to massive famines and social instability.
Explanation:
The primary cause of the Great Famine of 1315-1322 was prolonged rainfall killing crops through flooding. This period of extremely rainy and wet summers caused crop failures, leading to massive famines and starvation across northern Europe. The impact included skyrocketing prices of food staples, social tension, conflicts, and increased crime.
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