Visualisation
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Quantifying the Outbreak: Analysing the 1854 Data

In this post, we delve into the numbers behind John Snow’s 1854 map, using modern analytical tools to explore the data, validate Snow’s conclusions, and reveal new insights into one of history’s most famous outbreaks. Continue reading
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Plotting the Past: The 1854 Cholera Outbreak Visualised in R

In a previous post, we examined how to digitise the original cholera map using QGIS, georeferencing the historic image. In this post, we will revisit John Snow’s historic map and recreate it using modern tools in R, showcasing both the historical significance and the capabilities of contemporary data science. Continue reading
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Geography of an Outbreak: Georeferencing Snow’s 1854 Map

In the mid-19th century, the bustling streets of London were teeming with life—and disease. The city was in the grip of a deadly cholera outbreak, and the people had no clear understanding of how the disease spread. Many believed it was caused by “miasma,” or bad air, but one physician, John Snow, had a different… Continue reading