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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Canada's new flag, with its maple leaf design, was unfurled in 1965 in Ottawa!
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The first telephone book was one page long and had only 50 names in it.
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During World War 1, Harry Houdini took 1 year off performing to help sell war bonds and teach american soldiers how to escape from German handcuffs.
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Leonardo Da Vinci predicted the mass use of solar energy as long ago as 1447.
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