North America 1845: Annexation of Texas
 
	
	29 December 1845
											
												29 Dec 1845
											
										
										
									
										
										
										
									
										
										
										
									
										
										
										
									
										
										
										
									
										
										
										
									
										
										
										
									
										
											Annexation of Texas
						
							
								2 Oct 1843 Oregon Dispute
							
						
							
								29 Dec 1845 Annexation of Texas
							
						
							
								13 May 1846 Outbreak of the Mexican–American War
							
						
							
								15 Jun 1846 Oregon Treaty
							
						
							
								18 Aug 1846 Conquest of California & New Mexico
							
						
							
								19 Nov 1846 Northern Mexican Theater
							
						
							
								9 Mar 1847 Siege of Veracruz
							
						
							
								14 Sep 1847 Battle for Mexico City
							
						
							
								2 Feb 1848 Treaty of Guadalupe Hidalgo
							
						
							
								11 Feb 1849 California Gold Rush
							
						
							
								9 Sep 1850 Compromise of 1850
							
						
							
								14 Oct 1852 Opening up the West
							
						
							
								30 Dec 1853 Gadsden Purchase
							
						
							
								6 Dec 1855 Bleeding Kansas
							
						
							
								2 Apr 1857 Filibuster War
							
						
							
								29 Sep 1858 Mexican Reform War
							
						
							
								18 Oct 1859 Raid on Harpers Ferry
							
						
					
				An even bigger flashpoint than Oregon was Texas, which wanted to join the US despite Mexican warnings that doing so would be considered an act of war. The first US attempts to annex Texas were blocked by Congress, with free state politicians worried about Texas' slave state status. Nonetheless popular opinion in both countries strongly favored annexation and Texas was finally admitted to the Union in 1845.