Line for February 24, 2026

Earliest

1. 1
   Campaign polio

   The World Health Assembly resolves to eradicate polio

   Position 12345
2. 2
   Campaign smallpox

   WHO launches an intensified plan to eradicate smallpox

   Position 12345
3. 3
   Vaccine smallpox

   Edward Jenner sees cowpox protect milkmaids from smallpox: vaccination begins

   Position 12345
4. 4
   Treatment diabetes

   A Nobel Prize for the discovery of insulin

   Position 12345
5. 5
   Eradication smallpox

   The World Health Assembly declares the world free of smallpox

   Position 12345

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