› added 7 years ago

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TIL the Aztecs made swords embedded with prismatic obsidian blades that are far sharper than even high quality present day steel razor blades.

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YpOdG TIL that plastic and petroleum were originally environmental saviours, because they eliminated the need to kill whales, elephants, turtles, and many other creatures for their materials.
R5NR8 TIL In 2013 a couple walking their dog in California found 8 coffee cans containing over 1,427 gold coins worth over $10 million. The original source of the hoard is still unknown.
Me4xB TIL humans are the only ones among all primates with chins
LQDe9 TIL that The Gaumont Film Company is the oldest exciting film company in the world
pJBe TIL that tear gas is illegal for use in war but legal for domestic riot control