Thing were always passed down from one to another
Answer:
The concept of the "suburbs" was built up by Levitt and Sons, and this concept had become extremely successful, as over 85% of new homes within the United States are in suburban areas- and is has become a staple of American culture.
..Well, you might want to cut out the "staple of American culture" part. That's just me talking out my butt.
Because of the industrial revolution farmers moved to the cities for a better life. However this did not happen because the area was very polluted and badly built homes meant lots of disease and death. Many people moved out of the villages so the farmers would have less business. I would say the last option is correct.
Before the United States joined World War II in response to the Japanese attack on Pearl Harbor, the great battle had been raging in Europe since 1939. While the British and Russians struggled against the German Reich, the United States remained officially neutral and refused to enter the war.
The 2 rivers acted as common ground between people. they made food and people lived near them, soon communities were built that made a civilization.