nov 7, 1796 - Vaccination for smallpox was found

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Edward Jenner found the vaccination for smallpox when he discovered that people who ad contracted the cowpox disease never smallpox. He then took pus from a lady who cowpox injected into a child. It made him sick but he recovered.

The child was injected with smallpox disease and he never got sick. That is how the vaccination against smallpox was discovered.

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