American Indian Movement (AIM), Native American civil-rights activist organization, founded in 1968 to encourage self-determination among Native Americans and to establish international recognition of their treaty rights.
Answer:
Nullification Crisis was caused by the introduction of a series of protective tariffs. ... The 1828 Tariff of Abominations which sparked the Nullification Crisis was the third protective tariff implemented by the government.
Explanation:
tariffs null