It is the only U.S. state to have a continuous border of rivers running along three of its sides, Mississippi River to the west, Ohio River to the north, and Big Sandy River and Tug Fork to the east. The Kentucky Derby is the oldest continuously held horse race in the country. The neighborhood was also home to the Southern Exposition which featured the first public display of Thomas Edison’s light bulb. Countryaah.com: Offers a full list of nationwide and statewide holidays in Kentucky starting from January 1st – New Year’s Day. Also covers the most recent three years of public holidays within the state of Kentucky.