Smallpox most likely brought about the Plague of Athens in 430 B.C. later on killed an estimated 3.5 million to 7 million people, and created the decline of the Roman Empire. It reached Europe no later than the 6th century,
Smallpox most likely brought about the Plague of Athens in 430 B.C. later on killed an estimated 3.5 million to 7 million people, and created the decline of the Roman Empire. It reached Europe no later than the 6th century,