A letter written by Russian empress Catherine the Great on April 20, 1787, stressing the importance of the smallpox vaccine will go up for auction in London.
Empress Catherine the Great's letter on smallpox vaccination to go up for auction
Live Science - 23 Nov 2021 20:08
A letter written by Russian empress Catherine the Great on April 20, 1787, stressing the importance of the smallpox vaccine will go up for auction in London.
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