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Friday, June 19, 2026

Line for June 19, 2026

Put these 5 milestones in time order, earliest at the top. The years appear when you lock in your order.

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Earliest

  1. 1
    Elimination smallpox

    Smallpox is eliminated in North America

  2. 2
    Elimination malaria

    WHO certifies malaria gone from the United States

  3. 3
    Campaign polio

    The World Health Assembly resolves to eradicate polio

  4. 4
    Vaccine tetanus

    Tetanus toxoid is developed

  5. 5
    Vaccine smallpox

    Edward Jenner sees cowpox protect milkmaids from smallpox: vaccination begins

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