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			 Date | 
			 Event(s) | 
		
	
| 1  | 1861  | - 12 Apr 1861—9 Apr 1865: American Civil War
 The American Civil War, widely known in the United States as simply the Civil War as well as other sectional names, was a civil war fought from 1861 to 1865 to determine the survival of the Union or independence for the Confederacy. 
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| 2  | 1914  | - 28 Jul 1914—11 Nov 1918: World War I
 World War I (WWI or WW1), also known as the First World War or the Great War, was a global war centered in Europe that began on 28 July 1914 and lasted until 11 November 1918. 
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| 3  | 1929  | - 1929—1939: The Great Depression
 The Great Depression was a severe worldwide economic depression in the 1930s. The timing of the Great Depression varied across nations; however, in most countries it started in 1929 and lasted until the late 1930s. 
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