sentences:  In the 1960s, Ard AL-Mowled was developed as a public housing scheme to accommodate the exploding population growth of lower income residents of the old city.Around the beginning of the 1970s, the modern district of Ard Sultan began to be established according to land subdivision and zoning laws.Because of the high land price in the area, it attracted upper and middle-income groups who left the deteriorating colonial city.