The first battery was made from copper and iron jars
Over 2,000 years ago, ancient Mesopotamian jars with copper and iron components may have been the world's first batteries, hinting at early electrical knowledge.
Ancient Mesopotamian jars, dubbed the Baghdad Battery, might be the world's earliest batteries, dating back over 2,000 years. Discovered in 1936, these clay vessels contain a copper cylinder and an iron rod. When filled with an acidic liquid like vinegar, replicas generate a small electric current, estimated at 0.5 to 2 volts.
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