Did you know that there are an estimated 3.1 million American children with at least one parent who is in the United States illegally? Illegal immigration has been a problem in the United States since 1875. In 1882, President Chester A. Aurthor was the first president to ban all Chinese workers. Shortly thereafter, criminals and the mentally ill were deported from the United States. Before that, immigration wasn't always a problem. In 1892, the first immigration portal opened at Ellis Island, New York. This was the main immigration station. Here new arrivals had to show their identity and were asked a series of questions. After all this the immigrants were scanned for physical ailments and had to be vouched for by a friend or family member. By the time the operation ended in 1954, Ellis Island had welcomed more than 12 million immigrants. In 1921, a quota law was passed to reduce immigration to 357,000 people per year and to limit the number of immigrants from each country. In 1924 a new quota law was passed to reduce immigration to 160,000 per year. In 1929 the reduction in immigrants dropped to just 157,000 people. (History of illegal immigration in us) The great controversy in the history of the United States is Mexican immigration. Mexican immigration has become an outrage in some states. Immigrants want to work in agricultural places because they are cheap and don't need to be paid as much as Americans. Mexican immigration was huge until the year 1929 during the Great Depression. Nearly 500,000-1,000,000 immigrants have left the United States due to the stock market crash and limited employment, but mostly due to deportation and the threat of deportation. Things changed after the end. Over the next two decades nearly 4.8... half of paper migration into the USNP and the Web. February 05, 2014. I used this site because it contains dates from the history of immigration. It is also very credible and contains a lot of information. Princeton University. " - The future of children -." Princeton University. Princeton University Trustees © 2014, February 11, 2013. Web. February 10, 2014. I chose this site because it contains credible information about immigrant working parents. It also shows facts about immigrants. “Illegal Immigration: Drugs, Gangs and Crime.” Civitas Institute. Np, nd Web. February 9, 2014. This site was chosen because it contains facts and statistics about drugs and gangs. It also has reports of people who committed these crimes