Keywords: Snow-cholera-map-1.jpg page is/was http //en wikipedia org/w/index php title Image 3ASnow-cholera-map-1 jpg here Image copied from http //matrix msu edu/~johnsnow/images/online_companion/chapter_images/fig12-5 jpg 1854 original upload date on Wikipedia 2006-12-30 John Snow This image is in the public domain due to its age Author died in 1858 material is public domain http //nl wikibooks org/wiki/Bestand Snow-cholera-map jpg Category Public health PD-old original upload log All user names refer to en wikipedia 2006-12-30 23 15 Rewardiv 3045×2840×8 1183741 bytes <nowiki>Original map made by John Snow in 1854 copied from http //matrix msu edu/~johnsnow/images/online_companion/chapter_images/fig12-5 jpg Author died in 1858 material is public domain </nowiki> Dot maps History of visualization John Snow physician Old maps of London Charles Frederick Cheffins New Burlington Street Public health |