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A Magnificent and Important Proto-Elamite Arsenical Copper Striding Figure with Ibex Horns, a Raptor Skin Draped Around the Shoulders, and Upturned Boots Arsenical copper,ca 3000 BCE,from Iran or Mesopotamia. Sumerian culture.

COPY FROM SUMERIAN TABLETS: C. 250 BCE. The Baghdad Battery was found just outside Baghdad and is composed of a clay jar with a stopper made of asphalt. Sticking through the asphalt is an iron rod surrounded by a copper cylinder. When filled with vinegar - or any other electrolytic solution - the jar produces about 1.1 volts.