Editor’s Note: This article is part of Native News Online’s America 250: A Republic Built on Native Land initiative.
As the United States marks its 250th anniversary in 2026, Americans are reflecting on the nation’s founding, its ideals, and its history. Yet any honest examination of the American story must also acknowledge a fundamental truth: the United States was built on lands that had been inhabited, governed, and cared for by Indigenous nations for thousands of years before the Declaration of Independence was signed. The story of America is inseparable from the story of Native peoples, whose homelands became the foundation upon which the republic expanded.
From the earliest days of the United States, federal leaders pursued policies that opened Native lands to settlement, agriculture, commerce, and statehood. Through treaties, warfare, forced removals, land purchases, allotment policies, and acts of Congress, Indigenous nations lost control of vast portions of their ancestral territories. While American history often celebrates expansion as a symbol of progress and opportunity, Native communities experienced many of these same events as dispossession, displacement, and attacks on their sovereignty. The growth of the republic came at a tremendous cost to the first peoples of this continent.
The following timeline traces key moments in the loss of Native land from the founding of the United States through the nineteenth century. It is not a complete history, but it highlights how federal policies and territorial expansion reshaped Indigenous homelands across North America. As Americans commemorate 250 years of nationhood, this timeline invites reflection on a deeper and more complex history—one that recognizes both the resilience of Native nations and the reality that the United States became a continental power through the acquisition of Native land.
History Timeline of Native American Land Loss (1776–1887)
1776 – United States Declares Independence
The United States declared independence from Great Britain. Native nations were not included in the new government, despite occupying and governing much of the land claimed by the United States. For many Indigenous nations, the Revolutionary War marked the beginning of a new struggle to protect their homelands from American expansion.
1783 – Treaty of Paris
The Treaty of Paris ended the Revolutionary War. Great Britain ceded its claims to lands east of the Mississippi River to the United States without consulting the Native nations who lived there. Although Britain could not legally transfer Indigenous-owned lands, the treaty allowed the United States to claim authority over vast territories and set the stage for continued encroachment on Native homelands.
1787 – Northwest Ordinance
The Northwest Ordinance established a process for creating new U.S. territories and states in the Northwest Territory. While the ordinance acknowledged Native land rights in principle, it also encouraged settlement and expansion into Indigenous territories, leading to increased conflict between Native nations and American settlers.
Late 1700s–Early 1800s – Treaty-Making and Land Cessions
Throughout the late eighteenth and early nineteenth centuries, the United States negotiated hundreds of treaties with Native nations. These agreements transferred millions of acres of land to the federal government. Many treaties were negotiated under unequal conditions, and numerous treaty promises were later ignored or violated by the United States.
1803 – Louisiana Purchase
The United States completed the Louisiana Purchase, acquiring approximately 828,000 square miles of territory from France. The purchase was negotiated without the participation or consent of the many Native nations already living throughout the region. Although Indigenous nations continued to govern their communities, the purchase dramatically expanded U.S. claims and accelerated westward expansion, increasing pressure on tribes to cede land through treaties and other agreements.
Early 1800s – Jeffersonian Indian Policy
Under President Thomas Jefferson, federal policy emphasized acquiring Native lands through treaties, promoting cultural assimilation, and encouraging eastern tribes to relocate west of the Mississippi River. These policies contributed to the gradual erosion of tribal sovereignty and territorial control while laying the groundwork for later removal policies.
1821 – Mexican Independence
Mexico gained independence from Spain and assumed control over a vast territory that included present-day Texas, California, Arizona, New Mexico, Nevada, Utah, and portions of Colorado and Wyoming. Mexican settlement policies often conflicted with Indigenous land use and sovereignty, placing additional pressure on Native nations in the Southwest.
1830 – Indian Removal Act
Congress passed the Indian Removal Act, authorizing the federal government to negotiate the relocation of Native nations east of the Mississippi River to lands in present-day Oklahoma. The policy led to the forced removal of tribes including the Cherokee, Muscogee (Creek), Chickasaw, Choctaw, and Seminole. Thousands died from disease, exposure, starvation, and exhaustion during these removals, including along the route known as the Trail of Tears.
1846–1848 – U.S.-Mexican War and Treaty of Guadalupe Hidalgo
The United States defeated Mexico in the U.S.-Mexican War. Under the Treaty of Guadalupe Hidalgo, Mexico ceded approximately half of its territory to the United States. Native nations living within these lands were not consulted or included in treaty negotiations. The transfer expanded U.S. authority across the Southwest and intensified pressure on Indigenous communities through settlement, military campaigns, and federal land policies.
1853 – Gadsden Purchase
The Gadsden Purchase added additional land in present-day southern Arizona and New Mexico to the United States. Native nations living in the region were not parties to the agreement, which further expanded U.S. control over Indigenous homelands.
Mid-1800s – Reservation Era Expands
As settlers moved westward, the federal government increasingly confined Native nations to reservations through treaties, executive orders, and military force. Many tribes were removed from traditional homelands and restricted to smaller land bases, often far from culturally significant places and traditional food sources.
1871 – End of Treaty-Making
Congress ended the practice of making treaties with Native nations through the Indian Appropriations Act of 1871. Tribes remained sovereign governments, but the policy marked a significant shift in federal Indian relations and reflected a reduced recognition of tribes as independent treaty-making nations.
1887 – Dawes Act (General Allotment Act)
Congress passed the Dawes Act, dividing communally held tribal lands into individual allotments. Lands deemed “surplus” after allotment were opened to non-Native settlement. The policy resulted in the loss of tens of millions of acres of tribal land and significantly weakened tribal land bases across the United States.
By the End of the Nineteenth Century
Through warfare, removal, treaty-making, allotment, and settlement policies, Native-controlled lands had been reduced from most of North America to a small fraction of their original homelands. While Indigenous nations survived and maintained their sovereignty, cultures, and governments, the nineteenth century fundamentally reshaped the geography of Native America and the relationship between tribal nations and the United States.
Native News Online intern Zaynab Farran (Potawatomi) contributed to this article.
