Wow, not just one, but two of my favorite stories I learned in grad school in one article. The version I heard also had a beer signal. “We found several pubs in cholera hot spots, but on Snow’s original map, there was a different correlation between cholera and beer. Once he had mapped the locations of the outbreak, he found a gap: a place where there should have been cholera, but there was none. It was a local monastery, where the monks didn’t drink water from the Broad Street pump, but only homebrewed beer. Drinking exclusively beer protected them from the cholera outbreak, so what better way to commemorate the Soho cholera epidemic than with a pub crawl!“

thefinchandpea.com/2013…