As you read the first lesson you will discover that severalsuccessive empires developed in Mesopotamia the land between theTigris and Euphrates Rivers in what is now Iraq and along the NileRiver in what is now Egypt. When we study the origins of Asiancivilizations we will discover that significant civilizationsdeveloped along the Yangtze and Yellow Rivers in ancient China andthe Indus River in ancient India. While not all great civilizationsdeveloped in river valleys many did. Why do you believe such greatcivilizations developed in these river valleys?