1. Kentucky became the fifteenth state in the United States on April 23, 1792. After being a part of Virginia for 37 years, Kentucky was finally able to establish its own state government.

2. Mary Breckinridge, founder of the Frontier Nursing Service, was born in Memphis, Tennessee on April 23, 1881. Breckinridge dedicated her life to providing medical care to mothers and their babies in rural Kentucky.

3. On April 23, 1956, the United States Supreme Court upheld a lower court ruling that struck down Kentucky's racial segregation laws. This decision paved the way for the integration of schools and other public facilities in Kentucky.

4. The Louisville and Nashville Railroad was officially chartered on April 23, 1850. The railroad played a major role in the development and growth of Kentucky's economy and transportation system.

5. On April 23, 1917, Kentucky National Guard troops were called to active duty for World War I. Over 38,000 Kentucky soldiers served in the war, and many made great sacrifices to defend their country.