This material has been classified by the International Agency for Research on Cancer (IARC) as a Group 2A agent. Group 2A - The agent is probably carcinogenic to humans. [IARC Monographs on the Evaluation of the Carcinogenic Risk of Chemicals to Humans. - Supplement 7, World Health Organisation, 1987].
The Dawes Act of 1887, sometimes referred to as the Dawes Severalty Act of 1887 or the General Allotment Act, was signed into law on January 8, 1887, by US President Grover Cleveland. The act authorized the president to confiscate and redistribute tribal lands in the American West.
In 1871 Congress added a rider to the Indian Appropriations Act, signed into law by President Ulysses S. Grant, ending United States recognition of additional Native American tribes or independent nations, and prohibiting additional treaties.n June 2, 1924, U.S. Republican President Calvin Coolidge signed the Indian Citizenship Act, which made all Native Americans born in the United States and its territories American citizens. Prior to passage of the act, nearly two-thirds of Native Americans were already U.S. citizens.