The historian could use this map to study the territorial expansion of the United States through treaties and land purchases.
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In studying this map, a historian could gain insights into the geographic evolution of the United States during a crucial period of its history. The map would provide a visual representation of the various territories acquired through diplomatic negotiations and land transactions allowing the historian to analyze the patterns and trends of expansion over time.
By examining the specific regions highlighted on the map, the historian could discern the impact of key events such as the Louisiana Purchase, the Oregon Trail expeditions, and other treaties that shaped the nation's boundaries. This
visual data would aid in understanding the strategic decisions, political motivations, and diplomatic maneuvers that contributed to the expansion of U.S. territories, offering a comprehensive view of the nation's territorial growth.