1. In 1787, Delaware became the first state to ratify the United States Constitution, making February 6 a significant day in the state's history. Delaware's ratification set the stage for the other states to follow suit, ultimately resulting in the creation of the modern United States government.

2. On February 6, 1832, the Wilmington and Susquehanna Railroad Company was chartered by the Delaware General Assembly. The railroad, which eventually became part of the Pennsylvania Railroad, was an important transportation link between Philadelphia and Baltimore.

3. In 1865, the 4th Delaware Infantry Regiment was mustered out of service at Fort Fisher, North Carolina, marking the end of the regiment's participation in the Civil War. The 4th Delaware had seen action in several key battles, including Antietam, Fredericksburg, and Gettysburg.

4. On February 6, 1983, Delaware native Henry Heimlich performed the first successful use of his Heimlich maneuver to save a choking victim. Heimlich's invention has since become a widely recognized method for helping people who are choking on food or other objects.

5. On this day in 1999, the Wilmington Blue Rocks baseball team announced plans to build a new stadium in the city. The stadium, known as Frawley Stadium, opened in 1993 and has since become a popular destination for baseball fans in the region.