The oldest discovered bricks were originally made from shaped mud and dating to before 7500 B.C. They were found at Tell Aswad, and then later in the upper Tigris region and in southeast Anatolia close to Diyarbakir. Other more recent findings, dated between 7,000 and 6,395 B.C., come from Jericho and Catal Hüyük. In the ancient Indus Valley city of Mehrgarh, mud bricks have been found dating to 7000 BCE. (Kenoyer 2005) Ceramic bricks were used as early as 4500 BCE in early Indus Valley cities.