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early 18th century

Onesimus

West AfricaUnited StatesMedicine & Public Health

Background

An enslaved West African man in colonial Boston.

Contribution

Described the African practice of inoculation against smallpox to Cotton Mather, informing Boston's pioneering 1721 inoculation campaign during an epidemic.

Popular credit vs. the record

Onesimus's role was long omitted from histories that credited only European physicians.

Associated inventions

Collaborators & contemporaries

Sources & further reading

Each citation names the publisher and the exact reference title.

  • U.S. National Library of Medicine — history of medicineU.S. National Library of Medicine (NIH) · Government / archive

Direct source link pending editorial verification.