đź“… 14 May 1796
Jenner transferred material from milkmaid Sarah Nelmes’s cowpox lesion to the eight-year-old boy.
đź“… 14 May 1796
Sarah Nelmes supplied the cowpox material used in the experiment; she should be included in the account of the procedure.
đź“… 14 May 1796
The date marks Phipps’s cowpox inoculation, not the later challenge that tested whether he was protected.
đź“… 14 May 1796
The experiment helped develop a distinct smallpox vaccine; variolation had already been practiced in Asia and parts of Africa.
