1. Early American Immigration Policies
From 1815 to the start of the Civil War in 1861, five million people moved to the United States, about half from the British Isles, including Ireland. ... After the War with Mexico ended in 1848 with the Treaty of Guadalupe Hidalgo, Mexico acknowledged the 1845 annexation of Texas and ceded to the United States a huge expanse of land that included the present- day states of California, New Mexico, Nevada, Utah and parts of Arizona, Colorado, and Wyoming. ... Relatives on both sides of the border with Mexico continued to travel back and forth between the two countries to visit and to work. Pr...
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- Grade Level: Undergraduate