The earliest surviving map of the world is one prepared by the Babylonians 600 BC. Babylon surrounded by a circular landmass showing several cities such as Assyria, Urartu. They in turn are surrounded by a "bitter river" (Oceanus), with seven islands arranged around it so as to form a seven-pointed star. Seven outer regions beyond the encircling ocean. It deliberately omits peoples such as the Persians and Egyptians, who were well known to the Babylonians.