Akkadians, an ancient people who inhabited a region of lower Mesopotamia known as Akkad, so called from their capital city (Accad in the Bible; Agade in inscriptions). The Akkadians were Semitic nomads from Arabia who appeared in Akkad around 3000 B.C. About 2340 B.C., Sargon, an Akkadian king, conquered the Sumerian city-states to the south and part of Assyria to the north, establishing the Akkadian Empire. The empire gradually declined until it was overthrown some two centuries later by the Guti, a tribe of northern barbarians. Akkad itself was conquered by the Amorites around 2000 B.C. and became part of the Old Babylonian Empire.
Babylonia, an ancient country that occupied the area of southwestern Asia that is now Iraq.
Petra, an ancient city in what is now southwestern Jordan, 115 miles (185 km) south-southwest of Amman, was the ancient capital of the Nabataeans. Read more about this city carved into a sheer rock face.