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June 15, 2024
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jun 26, 1721 - Dr. Zabdiel Boylston of the Harvard University School of Medicine begins the first public inoculation campaign in order to slow the smallpox epidemic in Boston, giving a vaccine to his own son, and then to his slave and the slave's infant son

Added to timeline:

23 days ago
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Date:

jun 26, 1721
Now
~ 303 years ago