# The era of Black Death #science

**Channel:** The Relay Network 
**Source:** https://www.youtube.com/watch?v=LUlYnm1b9uA
**Transcript page:** https://www.withtranscript.ai/video/LUlYnm1b9uA

## Chapters

- 0:00 — Mysterious Invisible Threat Emerges
- 0:10 — The Black Death Identified

## Transcript

**[0:00]:** Something invisible was spreading, and people didn't yet understand what they were facing. But the real culprit was far smaller than anyone could see. So, what was killing them?

**[0:10]:** The culprit was a bacterium, Yersinia pestis. The Black Death reached Europe in the mid-14th century. An estimated 30% of Europe's population died.