From Wikipedia:According to Herodotus, the Egyptian pharaoh Psamtik I carried out such an experiment, and concluded the Phrygian race must antedate the Egyptians since the child had first spoken something similar to the Phrygian word bekos, meaning "bread"….An experiment allegedly carried out by Holy Roman Emperor Frederick II in the 13th century… encouraged "foster-mothers and nurses to suckle and bathe and wash the children, but in no ways to prattle or speak with them; for he would have learnt whether they would speak the Hebrew language (which he took to have been the first), or Greek, or Latin, or Arabic, or perchance the tongue of their parents of whom they had been born. But he laboured in vain, for the children could not live without clappings of the hands, and gestures, and gladness of countenance, and blandishments."Several centuries after Frederick II's experiment, James IV of Scotland was said to have sent two children to be raised by a…
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