Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
153
The dildo was invented at least 22,000 years before the wheel.
47
There is a 600 year old 240 paged book called the Voynich Manuscript, that’s written language is still completely unknown today.
15
It's still possible to see the division between East and West Germany due to different light bulbs.
5