26 Jan 1861: Louisiana Suceded from the Union During the Civil War, Louisiana seceded from the Union in January 1861, sent thousands of soldiers to fight for the Confederacy, and saw Union invasion and occupation, ultimately leading to the emancipation of enslaved people and a period of Reconstruction.
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1868
1868: Louisiana Re-admitted to the Union Louisiana Re-admitted to the Union
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1914
1914—1918: WWI World War I
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1941
1941—1945: WWII The United States officially entered World War II on December 8, 1941, following the Japanese attack on Pearl Harbor on December 7, 1941.
1837 - 