Data maps, statistics and visualisations; all tools used by modern data journalists. But the use of data to construct compelling graphics goes back hundreds of years. The man who created one of the most significant early examples is Dr. John Snow. This year is the 160th anniversary of his death, and his mapping of fatalities during the 1854 Cholera epidemic in London’s Soho remains one of the most impressive pieces of medical research and data journalism ever done. This was an exercise in editing using Premier Pro and producing a package for YouTube.