In 1233, Pope Gregory IX declared war on Cats and issued the infamous decree Vox in Rama, declaring black cats as symbols of witchcraft and satanic forces. This led to a mass extermination of cats across Europe. But this superstition had disastrous consequences—without cats to control the rat population, Europe faced a surge in rats carrying the Black Death Plague, which wiped out an estimated 25-50 million people across Europe, Asia, and North Africa.
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