In 1916, a US amendment was proposed to put all acts of war to a national vote. If you voted yes you would have to register as a volunteer for service in the United States Army.
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Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
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There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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In Ice Age, the drawings of characters during the end credit roll - and Sid's drawing of himself on a wall - were all done by the children of the animators.
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There's a rare breed of pig that looks like a sheep.
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