1827 - Aft 1880 (> 54 years)
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Date |
Event(s) |
| 1 | 1845 | - 29 Dec 1845: Texas annexed by U.S.,The Republic of Texas was annexed by the United States, becoming the 28th state.
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| 2 | 1846 | - 13 May 1846: Mexican-American War begins,The United States declared war on Mexico over a border dispute in Texas.
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| 3 | 1848 | - 24 Jan 1848: California Gold Rush begins,Gold was discovered at Sutter's Mill, California, triggering a massive migration of "forty-niners."
- 24 Jan 1848: Gold discovered in California,James W. Marshall discovered gold at Sutter's Mill in Coloma, California, beginning the California Gold Rush.
- 2 Feb 1848: Treaty of Guadalupe Hidalgo,The treaty was signed, ending the Mexican-American War and ceding significant territory to the United States.
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| 4 | 1850 | - 9 Sep 1850: Compromise of 1850,A series of five bills passed to address the issue of slavery, including admitting California as a free state and enacting the Fugitive Slave Act.
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