Pandemics have killed millions of people throughout history. How many deaths were caused by different pandemics, and how have researchers estimated their death tolls?<br><br><a href="https://ourworldindata.org/historical-pandemics" target="_blank"><img src="https://ourworldindata.org/images/published/Historical-pandemics-thumbnail.png"/></a>Pandemics have killed millions of people throughout history. How many deaths were caused by different pandemics, and how have researchers estimated their death tolls?<br><br><a href="https://ourworldindata.org/historical-pandemics" target="_blank"><img src="https://ourworldindata.org/images/published/Historical-pandemics-thumbnail.png"/></a> Read MoreOur World in Data