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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
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jan 1, 1913 - Diphtheria prevented by immunisation

Added to timeline:

11 Dec 2019
0
0
2648
Science Timeline

Date:

jan 1, 1913
Now
~ 111 years ago
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