why did the Indus River Valley have to be rebuilt many times.
He destoryed many so he rebuilt them
Many cities in Germany, Britain and the USSR suffered aerial bombardment, some of the worst examples are Coventry which had to be almost completely rebuilt as well as Dresden in Germany and London. Many other European cities suffered from street fighting and artillery attack.
There was a mass move to the suburbs.
Are you asking how many cities in the world? The answer to this question would be the following: "There is an incalculable number of cities in the world."
There are large St. Patrick's Day parades in many cities around the world, particularly in Irish cities like Dublin, and American cities like New York.
Only two of them:Mexico City (3rd): 20.45 millionSao Paulo (7th): 18.85 million
One way Japanese cities are like many American cities is that there are Western cities with concrete and steel office buildings, rush hour traffic jams, a lot of stores, restaurants and theaters.
19
London was about one third damaged thanks to the blitz bombing. London had to rebuild and they had to rebuild their economy. But London was not the only city affected. Many cities and homes had to be rebuilt or newly built. The country had to stay on rationing for ten more years while things were rebuilt and the economy could recover.
There are many Islamic cities in the world.
Great Cities of the Ancient World has 510 pages.