In 1854, Dr. John Snow witnessed an epidemic in his London ... in Shreveport and areas of activism in 1960. Using Voronoi maps, the civil rights project team has identified 179 homes and ...

A map divided into cells ... One of the first applications of a Voronoi diagram was by Dr John Snow, a prominent London physician. Cholera, which became widespread in the 19th century, has ...

It all starts with a pump. In this episode of Vox Almanac, Vox’s Phil Edwards explores the story behind Dr. John Snow’s famous map of the Broad Street pump. In 1854, news spread about a ...