Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
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In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
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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.
13
Rio de Janeiro was once capital of Portugal, making it the only European capital outside of Europe.
9
A Kodak engineer constructed the first digital camera in 1975. They didn't want to go digital. They went bankrupt in 2012.
9