Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
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A monk had once written over a book that contained information about calculus that was written by Archimedes in ancient Greece that could have made us 100 or even 1000 years more mathematically and technologically advanced.
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Rio de Janeiro was once capital of Portugal, making it the only European capital outside of Europe.
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Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
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Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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There's a bar in Ireland (presently named Sean’s Bar) that was opened in 900AD.
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