1. On July 27, 1794, the Whiskey Rebellion came to a head as 500 armed men attacked tax inspector General John Neville's home in Western Pennsylvania. This uprising was sparked by the government's unpopular excise tax on whiskey and was one of the first tests of federal authority under the new Constitution.

2. In 1863, the Civil War battle of Manassas/Norton's Ford took place on July 27. Confederate forces under General J.E.B Stuart clashed with Union troops, resulting in over 300 casualties.

3. July 27, 1922, marked the dedication of the Lincoln Memorial in Washington, D.C. The iconic marble statue of Abraham Lincoln was designed by sculptor Daniel Chester French and features inscriptions of the Emancipation Proclamation and Lincoln's Gettysburg Address.

4. The historic 1928 Democratic National Convention began on July 27 in Houston, Texas. This convention saw the nomination of New York Governor Al Smith, the first Catholic to be a major party's presidential nominee.

5. On July 27, 1953, the Korean War officially ended with the signing of an armistice agreement between North Korea, China, and the United Nations. The ceasefire led to the establishment of the demilitarized zone that still separates North and South Korea today.