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
During the Cold War, the US had planned to detonate a nuclear weapon on the moon.
25
In 1980, the city of Detroit presented Saddam Hussein with a key to the city.
29
Romans used a plant called Silphium as contraception. They had so much sex that they drove it into extinction.
24
Until the nineteenth century, solid blocks of tea were used as money in Siberia.
80
The Canadian province of New Brunswick (which was part of the UK at the time) had a bloodless war with the US state of Maine in 1839
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