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TIL Humans lived inland in North America 1,000 years before scientists suspected. Stone tools and other artifacts found in Idaho hint that the First Americans lived here 16,000 years ago — long before an overland path to the continent existed. It’s more evidence humans arrived via a coastal route.

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4knaw TIL North America almost broke apart but didn't and ended up with the largest non-sea rift in the world
JYNg4 TIL that the term "Going Postal" originated in the USA in 1990s following a several incidents from 1986 onward, in which individuals working for the United States Postal Service workers shot and killed fellow workers and members of the public.
5V9vD TIL In 2014, black taxi cab drivers brought parts of London to a standstill, protesting against Uber. This led to an 850% increase in downloads of Uber.
e0VKJ TIL that the smell of the air after a storm is caused by Geosmin: A chemical released by dead soil bacteria. Humans are hyper sensitive to it, capable of detecting at a concentration of 5 parts per trillion. It's theorised in our evolutionary past this helped us seek out water.
rR4Xy TIL It can take a photon 40,000 years to travel from the core of the sun to the surface, but only 8 minutes to travel the rest of the way to earth.