Edward Jenner was the pioneer of smallpox vaccine.

Gloucester Cathedral, Gloucester, Gloucestershire
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Gloucester Cathedral, formally the Cathedral Church of St Peter and the Holy and Indivisible Trinity, in Gloucester, England, stands in the north of the city near the River Severn. It originated in 678 or 679 with the foundation of an abbey dedicated to Saint Peter - later dissolved by King Henry VIII.
Edward Jenner, FRS (17 May 1749 – 26 January 1823) was an English physician and scientist who was the pioneer of smallpox vaccine, the world's first vaccine.
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