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TIL Sheep and goats are being used for weed control in difficult to reach areas, and to keep vegetation down from around runways, discouraging wildlife from gathering and causing danger to aircraft. They will eat noxious weeds as an environmentally friendly alternative to herbicides in city parks.

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aa8y TIL the average black-market price of an AK-47 worldwide is $534. In certain areas in Africa, prices of AK-pattern rifles can be as low as $30. It is estimated that up to 100 million Kalashnikov assault rifles are still in use today.
rxDw TIL that in 1964 civil rights activists spent the summer in Mississippi registering black voters. The resulting terror campaign against the activists included 35 shootings, 80 beatings, 30 bombings, and 35 church burnings. Several died. Over 1000 people were arrested.
ZgWG TIL parents believed their 5 year-old daughter was possessed by evil spirits because of her increasing stomach, only to be told by a doctor that she was in fact, pregnant.
j6gEE TIL that although the Gregorian Calendar is built around the fact that Jesus' birth was in 1 AD (AD stands for "Anno Domini" or "in the year of the Lord"), most historians agree that Jesus was actually born between 4 BC and 6 BC.
OoyQR TIL that William McAdoo's decision to close the NYSE for 4 months in 1914 to prevent Europeans from selling American securities and exchanging proceeds for USD, and then gold, led to a decisive shift in the global balance of economic power, from Europe to the USA