USA HISTORY

Detailed explanation-1: -President Johnson signed the Immigration and Nationality Act of 1965 into law on October 3, 1965. In opening entry to the U.S. to immigrants other than Northwestern Europeans, the Act significantly altered immigration demographics in the country for the first time since it was founded.

Detailed explanation-2: -The Immigration and Naturalization Act is a federal immigration law. Also known as the Hart-Celler Act, the law eliminated the national origins quota system, which had set limits on the numbers of individuals from any given nation who could immigrate to the United States.

Detailed explanation-3: -The 1965 Immigration Act is widely seen as a watershed in US immigration policy. It abolished the country-of-origin quotas, which had been in place since the early 1920s and which favoured immigrants from the UK, Germany, and Ireland, while severely limiting immigration from elsewhere in the Eastern Hemisphere.

Detailed explanation-4: -This law also brought numerical limits to immigration from Mexico and Latin America for the first time. The implementation of numerical restrictions on immigration from the Western Hemisphere left the entire hemisphere with less than half of the slots used by Mexicans alone in the preceding year.