USA HISTORY

Detailed explanation-1: -Plague brought by early European settlers decimated Indigenous populations during an epidemic in 1616-19 in what is now southern New England. Upwards of 90% of the Indigenous population died in the years leading up to the arrival of the Mayflower in November 1620.

Detailed explanation-2: -Between 1800 and 1900, the American Indians lost more than half of their population, and their proportion in the total U.S. population dropped from 10.15% to 0.31%.

Detailed explanation-3: -In 1837–38, smallpox killed up to 50 percent of the North American Plains Indians. Most historians now agree that over a period of about 300 years, about 90 percent of New World peoples died of Old World diseases or related causes such as lack of care and starvation.

Detailed explanation-4: -European settlers killed 56 million indigenous people over about 100 years in South, Central and North America, causing large swaths of farmland to be abandoned and reforested, researchers at University College London, or UCL, estimate.

Detailed explanation-5: -The North American smallpox epidemic from 1775–1782 overall death toll was estimated at 130, 000; However, it is believed that many more Native Americans died than was accounted for.