1 янв 1796 г. - First succesful vaccine
Описание:
The first vaccine was created by Edward Jenner after he noticed that milkmaids who caught cowpox were protected against smallpox, and then created the first vaccine which was inoculated cowpoxДобавлено на ленту времени:
Дата:
1 янв 1796 г.
Сейчас
~ 229 г назад