Philadelphiaâs building-related codes regulate the construction industry and set forth the legal responsibilities that come with property ownership.
The ziggurat evolved out of the platform temples of the Ubaid culture (5000 to 3800 BCE). These platforms were intended to raise the shrine of the god closer to heaven. The White Temple at Uruk (about 3150 BCE) appears to be part of an early predecessor of the ziggurat.
They are defined by their writing systems. The earliest is in Sumer (or Sumeria), where we now have evidence of a long pre-history of writing. After early pictograms, the writing system that emerged, cuneiform, is named after the wedge shapes that were made by reed pens on clay tablets.