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What is John Snow about?

This document contains an activity sheet about a map created by John Snow during a cholera outbreak in Soho, London. The map shows clusters of cholera cases highlighted in black rectangles near a water pump on Broad Street. Most of the cholera deaths occurred near this pump. The map helps disprove the theory that cholera was caused by air pollution, as the cases were concentrated in one small area rather than affecting a large region. However, the map alone does not entirely disprove the theory and more inf

Author

tneitien

Language

EN