period 1 begins with 1941. if the Americans Indian population in what is now the United States was nearly 10 million before 1492, why is the United States population in modern times only 2 to 3% American Indian?

Native Americans, also known as American Indians, arrived in the United States about 15000 years ago. The native Americas were used to live in separate communities. In the beginning of 1942, the ratio of Native Americans started declined due to the several reasons warfare and diseases.

Apart from the effect of diseases and warfare, the government of United States designed discriminatory policies, one-sided treaties to remove them from their ancestral lands.

The others who survived accepted his life at their reservation at that time. The Native American used to live separate in separate communities different from British colonies at the time of US' establishment.