Question: The date of the start of the history of the United States is a subject of debate among historians, in recent decades American schools and universities typically have shifted back in time to include more on the colonial period and much more on the prehistory of the Native Americans, the history of Native Americans in the United States began in ancient times tens of thousands of years ago with the settlement of the Americas by who?

<P0-S0> The history of Native Americans in the United States began in ancient times tens of thousands of years ago with the settlement of the Americas by the Paleo-Indians. <P0-S1>  Anthropologists and archeologists have identified and studied a wide variety of cultures that existed during this era. <P0-S2>  Their subsequent contact with Europeans had a profound impact on their history. <SEP> <P1-S0> The date of the start of the history of the United States is a subject of debate among historians. <P1-S1>  Older textbooks start with the arrival of Christopher Columbus on October 12, 1492 and emphasize the European background of the colonization of the Americas, or they start around 1600 and emphasize the American frontier. <P1-S2>  In recent decades American schools and universities typically have shifted back in time to include more on the colonial period and much more on the prehistory of the Native Americans. <SEP> <P2-S0> The use of terms and images referring to Native Americans/First Nations as the name or mascot for a sports team is a topic of public controversy in the United States and in Canada, arising as part of the Native American/First Nations civil rights movements. <P2-S1>  Since the 1960s, there have been a number of protests and other actions by Native Americans and others targeting the more prominent use of such names and images by professional franchises such as the Cleveland Indians and the Washington Redskins. <P2-S2>  However, the greatest change has occurred in the trend by school and college teams that have retired Native American names and mascots at an increasing rate in recent decades. <P2-S3>  The analysis of a database in 2013 indicates that there are currently more than 2,000 secondary schools with mascots that reference Native American culture, compared to around 3,000 fifty years ago. <P2-S4>  Many of these changes have been voluntary as the issue has been discussed at a local level. <P2-S5>  Statewide laws or school board decisions mandating change have been passed in states with significant Native American populations. <P2-S6>  Other states have official policies that encourage change in accordance with principles of establishing a proper environment for education. <P2-S7>  However, there has also been resistance and backlash. <SEP> <P3-S0> Bury My Heart at Wounded Knee: An Indian History of the American West is a 1970 book by American writer Dee Brown that covers the history of Native Americans in the American West in the late nineteenth century. <P3-S1>  The book expresses details of the history of American expansionism from a point of view that is critical of its effects on the Native Americans. <P3-S2>  Brown describes Native Americans' displacement through forced relocations and years of warfare waged by the United States federal government. <P3-S3>  The government's dealings are portrayed as a continuing effort to destroy the culture, religion, and way of life of Native American peoples. <P3-S4>  Helen Hunt Jackson's "A Century of Dishonor" is often considered a nineteenth-century precursor to Dee Brown's writing.