SciShow
7 Deadly Epidemics You Didn’t Know Existed
2026 • E34 Mar 9, 2026 17m
From the non-bubonic plague that killed a Welsh king, to the deadliest pestilence in 16th century Mexico, to a pandemic we're currently in the middle of (No, it's not coronavirus), here are 7 disease outbreaks spanning roughly 25,000 years of human history that you probably haven't heard of.