Changes in the US Economy By jjwolf Oct 1, 1620 Pilgrams landed in the US Period: Sep 21, 1700 to Sep 21, 2012 Changes In The US Economy Period: Sep 21, 1700 to Sep 21, 1750 Agricultrial Period: Sep 21, 1750 to Sep 21, 1920 Industiral Sep 21, 1760 Industrial Revolution Oct 1, 1776 Railroads started to be build Oct 1, 1794 Cotten Gin Was invented Eli Whitney invented the cotten gin Oct 1, 1876 Telephone was Invented Period: Sep 21, 1920 to Sep 21, 1973 Production of Services Oct 1, 1929 The Great depression/first stock market crash Oct 1, 1939 WWII THe war brought the US out of the depression Period: Sep 21, 1970 to Sep 21, 2012 Information Technology Oct 1, 1970 COmputers were starting to be built Internet was also invented Sep 9, 2001 Twin Towers HIt on 9/11 Oct 1, 2008 The Great Recession