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TIL. Although the last letter of the English Alphabet is "Z", so far the last letter added to it was "J".

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E1xLV TIL a group of well preserved wooden spears were unearthed at a German coal mine. They are between 380,000 and 400,000 years old, making them at least 75x older than the pyramids of Eygpt. These are the oldest wooden artifacts ever unearthed.
KYonJ TIL the US Department of Agriculture published guidance on how to dispose of horses with explosives [PDF]
rd4x TIL the European Space Agency and EU are currently deploying an alternative to GPS, called “Galileo”. As well as being accurate to 1cm, it will also have a “Search and Rescue Service”, where distress signals can be picked up from anywhere on Earth. The full system will be completed by 2019.
e0DeE Not getting eaten is at the top of the to-do list for most members of the animal kingdom. Now, a new study suggests several species of dolphins can tell when they’re in danger of becoming a killer whale’s dinner—simply by eavesdropping on their calls.
LQgmr TIL that bats are the only mammals capable of true flight