May 28, 1830, first major legislative departure from the U. S policy of officially respecting the legal and political rights of the American Indians. The act authorized the president to grant Indian tribes unsettled western prairie land in exchange for their desirable territories within state borders (especially in the Southeast), from which the tribes would be removed. What is that act?

The Indian Removal Act

Explanation:

The Indian Removal Act was promoted, and signed into law by president Andrew Jackson ini 1930. The Act allowed the president to negotiate with several native american nations (the Cherokee, the Choctaw, the Chicasaw, etc) who lived in the southeastern United States for their removal from those areas, and their relocation to a new designated Indian Territory west of the Mississippi river (mostly in Oklahoma).

The Indian Removal Act caused the death of thousands of Native Americans who died of starvation and disease during their removal. This event is known as the Trail of Tears and is considered a genocide by many contemporary historians.