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.
22
The Titanic was the first ship to use the SOS signal.
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A singing birthday card has more computing power than the allied forces in 1945.
30
Originally, Du Pont, Inc. was a tiny gun powder mill in New Jersey.
20
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
In 1518, a "dancing plague" struck Strasbourg, Alsace, whereby hundreds of people danced fervently in the streets over the period of a month. Some suffered heart attacks or strokes, and many others died from sheer exhaustion. It remains unexplained.
19
Tickling was a form of torture used in ancient China on nobility because it left no mark and recovery was quick.
33
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22