Leonardo Da Vinci made a robotic lion in 1515 that would walk, sway, open its mouth and move its tail - it even had a compartment that opened to present flowers.
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There’s a Swedish power metal band called “Sabaton” who teach history through their music, including an album devoted to teaching about World War Two.
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The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
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There are pictures of Knights fighting Snails in old Medieval manuscripts - and nobody knows why.
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Ancient Greeks believed that redheads turned into vampires after they died.
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20 years ago, there were only 130 websites, Google wasn't around, and you had to pay for an email account through an ISP.
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The ‘@’ sign is centuries old, and was used in Europe to denote a unit of weight (the “arroba”) equivalent to 25 lbs.
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