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TIL about WhatThreeWords, a navigation system where the entire world's surface is divided into 3 meter squares, and each square can be described by a unique combination of 3 simple words.

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via reddit.com

6xl8 TIL Iceland is the only country without mosquitoes.
P1Maw TIL In 1942, German submarines sunk a British passenger ship. They surfaced to collect survivors, announced their presence to the allies and sailed under a Red Cross flag. The U-Boats were attacked by allied planes, forcing the submarine to throw all the survivors back into the sea and crash dive.
e0E1L TIL Bird’s nest soup is considered a delicacy in China. It is made from the nests of birds called swiftlets, who make the nests using their own solidified saliva. These nests are sold at prices up to about $6,6000/kg.
yBnV TIL, Pakistan contributes the highest number of troops to UN Peacekeeping.
M94b TIL that there was an experiment to teach dolphins English. A dolphin called Peter did actually learn a few words but actually fell in love with his teacher and also had sexual urges. Consequently, the experiment ended pronto but unfortunately the dolphin couldn’t cope and committed suicide.