Answer:
100 million acres of land
Step-by-step explanation:
Native peoples who were deemed to be "mixed-blood" were forced to accept U.S. citizenship, while others were "detribalized." Between 1887 and 1934, Native Americans "lost control of about 100 million acres of land" (United states has 1.9 billion acres of land) or about "two-thirds of the land base they held in 1887" as