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TIL there is a 2,700km long wall running through the Sahara desert. Created in 1987 it is still manned 24/7/365 by thousands of soldiers, supported by radar and surveillance equipment, and it features the longest continuous minefield in the world.

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jDln TIL that Amazon was initially named ‘Cadabra’, this was only changed when a lawyer misheard the name as 'cadaver’.
PbxG TIL There is a type of ant that can explode suicidally, spewing poisonous adhesive secretions all around them.
VMXE4 TIL of Charles Henry Turner. He was an African American scientist who earned his PhD in 1907. He discovered that insects could distinguish pitch, that cockroaches can learn by trial and error and that honeybees can see color.
BgZd TIL Craig Robinson (Darryl of “The Office”) has a master’s in education and taught elementary music education in Chicago before acting.
J1MnB TIL of the Sunda Straits Crisis. A two week confrontation between the UK and Indonesia which nearly escalated into full scale war.