© Dr. Tony Brain/Photo Researchers, Inc.
Susruta, a Brahmin priest, describes malarial fever that he attributes to mosquito bites
A widespread epidemic occurs in Lugnano, north of Rome, according to forensic DNA evidence
Giovanni Maria Lancisi, physician to three popes, notes that draining swamps curbs malaria; he suggests an insect origin
German chemistry student Othmar Zeidler synthesizes dichloro-diphenyl-trichloroethane (DDT); insecticidal properties not yet discovered