1854 Broad Street cholera outbreak

The Broad Street cholera outbreak (or Golden Square outbreak) was an outbreak of cholera that happened in 1854 near Broad Street (now Broadwick Street) in Soho, London, England. The even happened during the worldwide 1846–1860 cholera pandemic. The outbreak caused the deaths of 616 people. It is best known for the physician John Snow's study of what caused it. He said that germ-contaminated water was the source of cholera. The common belief was that it was caused by particles in the air. This was referred to as "miasma". His discovery led to changes in public health. It also caused changes to the construction of sanitation facilities in the mid-19th century.

Part of 1846–1860 cholera pandemic
File:Pump Handle - John Snow .jpg A replica pump commemorating the outbreak and John Snow's investigation of it.
Date	1854
Coordinates	51°30′48″N 0°08′12″W
Cause	Cholera present within the pumping water.

1854 Broad Street Cholera Outbreak Media

• Original map by John Snow showing the clusters of cholera cases (indicated by stacked rectangles) in the London epidemic of 1854. The contaminated pump is located at the crossroads of Broad Street and Cambridge Street (now Lexington Street), running into Little Windmill Street.

• Source: Photograph by Scott and Sons, Carlisle in Rawnsley, H.D., Henry Whitehead, 1825-1896: A Memorial Sketch, James MacLehose and Sons, Glasgow, 1898

• John Snow Pub 1.jpg

  The pub, close by to the new location of the pump, named after John Snow

• John Snow Pub 2.jpg

  A wider image of the pub named after John Snow with the pump centre-right

• Pump Handle - John Snow 2.jpg

  A wider image of the pump, with the red granite slab in view in the bottom-left corner

• The plaque that rests on the new foundation of the pump

• Cholera historic pump sign - John Snow.jpg

  A plaque marking the significance of the red granite and the pump. Located on the wall of the John Snow pub, straight across from the pump itself.