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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
June 15, 2024
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4 mayo 1796 año - First Vaccinations

Descripción:

Edward Jenner's first vaccination. After successfully using cowpox to help vaccinate against smallpox in humans, the experiment was immediately followed by public criticism for many different reasons ("History of Anti-vaccination Movements")

Añadido al timeline:

Byo
9 dic 2019
0
0
210

fecha:

4 mayo 1796 año
Ahora mismo
~ 228 years ago