Wheel
One of man's simplest but most important inventions. A Sumerian (Erech) pictograph, dated about 3500 BC, shows a sledge equipped with wheels. It is also shown in Uruk pictographs, c 3400 BC, and on the Royal Standard of Ur. Early wheels were solid and unwieldy, made of a single piece of wood or t...
archaeologs
EnglishArtifacts, Tools