Small pox
How an Enslaved African Man in Boston Helped Save Generations from Smallpox. In the early 1700s, Onesimus shared a revolutionary way to prevent smallpox. https://www.history.com/news/smallpox-vaccine-onesimus-slave-cotton-mather?fbclid=IwAR07Vi4awbitSkibehYo7RTEeMKCHonrhWJhL9Oe4zbF4oBf30QGa2SvAII #Onesimus #Smallpox

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