December 20 in history:
You could say that the Civil War began on December 20th, 1860, when South Carolina became the first state to secede from the Union. The election of Abraham Lincoln as president has been blamed as the crucial event which led slave-holding states to break away. The first actual shots in the war were fired in South Carolina the following April.
Elvis Presley’s first movie role, in Love Me Tender, cast him as the only brother in a Southern family who did not fight in the Civil War. Soon after that movie, Elvis became a soldier in real life, when he received his draft notice to join the Army on this date in 1957.
The Army, Navy, Air Force, and Marines took part in a joint invasion of Panama on December 20th, 1989. “Operation Just Cause” removed Panama’s dictator, Manuel Noriega, from power. The George H.W. Bush administration declared the invasion was justified as a way to protect the Panama Canal, and to protect U.S. citizens in the country against threats by Noriega.