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21 jan 1799 ano - Edward Jenner's smallpox vaccination is introduced

Descrição:

Edward Jenner introduces the worlds first small pox vaccination. This vaccination was meant ot help fight small pox and erradicate the disease

Adicionado na linha do tempo:

World events 1790-1814

ByJuan Daniel HIDROWOH
27 set 2018

Data:

21 jan 1799 ano
Agora
~ 225 years ago
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