Evidence for their gardens comes from written texts , pictorial sculpture and archaeology .
Its peoples ( Sumerians , Akkadians , Assyrians , and Babylonians ) were urban and literate from about 3,000 BC .
Evidence for peoples ' gardens comes from written texts , pictorial sculpture and archaeology .
Its peoples ( Sumerians , Akkadians , Assyrians , and Babylonians ) were urban and literate from about 3,000 BC .