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The Mexican American war ends with the signing of the Treaty of Guadalupe Hidalgo
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As part of the compromise of 1850, New Mexico becomes a territory of the United States
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Confederate troops advance into northern New Mexico but, once defeated at Glorieta Pass, retreat home to Texas
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John Tunstall is killed, starting the Lincoln County War
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The Atchison, Topeka, and Santa Fe railroad builds the first tracks in New Mexico
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New Mexicans proves their loyalty to the Unites States by serving heroically in the Spanish American war
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Arizona voters reject a plan to enter the Union as a single state with New Mexico
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New Mexico achieves statehood at last
