5 calamities that wiped humans off the face of the earth

In this video, you will know about 5 worst natural calamities in human history. This calamities still have an impact in our lives even now.

Timestamps
0:00 – Intro
0:12 – The Spanish Flu
1:53 – HIV/AIDS
4:33 – The Great Chinese Famine
6:32 – The Corona Virus Pandemic
8:52 – The China Floods

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