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22 апр 1800 г. - First use of Small pox vaccine

Описание:

in Boston, MA by Edward Jenner when he inoculated a boy

Добавлено на ленту времени:

Diseases that challenged the scientific community

14 дек 2018

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613

Дата:

22 апр 1800 г.

Сейчас

~ 225 г назад

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