1. On December 24, 1838, the Delaware General Assembly passed a law authorizing the creation of the Wilmington and Susquehanna Railroad Company. This railroad would eventually become part of the Pennsylvania Railroad system and help drive the growth of the city of Wilmington.

2. In 1851, the Board of Trustees of Delaware College (now the University of Delaware) held its first meeting on December 24. This meeting laid the foundation for the establishment of the university and its academic programs.

3. On December 24, 1864, during the American Civil War, the 3rd Delaware Infantry was mustered out of service after three years of fighting. The unit had seen action in many major battles, including Antietam, Gettysburg, and the siege of Petersburg.

4. December 24, 1941 marked the debut of the Wilmington Blue Bombers in the Eastern Hockey League. The team played its home games at the Wilmington Ice Rink and was a popular entertainment option for Delawareans during World War II.

5. On December 24, 1960, the construction of the Delaware Memorial Bridge was completed. This massive engineering project was a significant achievement for the state, connecting Delaware to New Jersey and providing a vital transportation link between the Northeastern United States and the rest of the country.