During the first 2 million years of the United States’ history, the human population was a minor element in the world ecosystem, with at most 10 million members. One Hundred thousand years ago, with the dawning of the Stone Age, the number of human beings began to increase more rapidly. The relative balance before these times gave way when the human population developed methods of agriculture and animal breeding. This enabled them to stay in one location …showed first 75 words of 1956 total…

…showed last 75 words of 1956 total…citizenship and right to be an American. Bibliography “Immigration into the United States.“ March 1994, Online. Road Runner, October14 2000. Available @ http://www.immigrationassciates.com. “Immigration.” January 1990; Online. Road Runner, October 16 2000. Available @ http://www.issues2000.com. “Immigration within our borders.“ September 28 1996; Online. Road Runner. Available @ http://www.aila.org “US Visa Consultants Ltd.“ February 1992; Online. Road Runner, October 16 2000. Available @ http://www.autek.com/usuisa/ Handlin, Oscar. Immigration. “Microsoft Encarta 1997.” Copyright 1997. Jouar, Jim. Immigration. “Grolier Multimedia Encyclopedia 1996” Copyright 1996.