Simplify the following text for a Grade 5 native English-speaking person.
Original: The oldest discovered bricks , originally made from shaped mud and dating to before 7500 B.C. were found at Tell Aswad then later in the upper Tigris region and in southeast Anatolia close to Diyarbakir .
Simplified: The oldest shaped bricks found date back to 7,500 B.C. . They have been found in Ã ayÃ nÃ 1\/4 , a place located in the upper Tigris area in south east Anatolia close to Diyarbakir .