Our Pick
Posted on @rawstates
Warfarin discovered
1948
Madison, Wisconsin
Gene6 · CC BY-SA 4.0 · Wikimedia Commons
A farmer drove through a blizzard with a dead heifer and a milk can of unclotted blood, asking why his cattle were bleeding out. Karl Paul Link traced it to spoiled sweet clover. The compound became rat poison, then the most prescribed blood thinner in the world. It is named for the foundation.
That was 1 of the hidden places.
Location: historic site
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