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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
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jan 1, 1796 - 1796 Edward Jenner developed first smallpox vaccine

Added to timeline:

19 Oct 2018
0
0
194
Vaccine First Invention History
Wiki reference

Date:

jan 1, 1796
Now
~ 228 years ago
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