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TIL that humans used crop rotation 8,000 years ago. As far back as 6000 BC, farmers alternated planting crops each year. They did not understand the chemistry, but knew that doing so kept the soil healthy for good harvests.

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e0Y1b TIL that popcorn, being relatively inexpensive, became popular during the Great Depression. It became a source of income for many struggling farmers, including the Redenbacher family. In fact, when sugar was rationed during WWII, Americans ate three times as much popcorn as they had before.
GAK9j TIL the dog from The Thing (1982) also played the wolf in Journey of Natty Gann (1985) and White Fang (1991).
YpwVW TIL due to a campaign in the 1970s, “Square Dancing” is the state dance in 75% (24 out of 32) of US States that list one.
ZppPp TIL of all high income countries, the US has the highest rates of overweight and obesity, with a third of the population obese. This rate projected to rise to around 50 percent by 2030.
ADPN7 TIL that bees make a "whoop/oop" sound when they bump into one another.