1. On March 23, 1781, the Battle of Guilford Court House took place in North Carolina during the Revolutionary War. Although Delaware troops did not participate in the battle, the Delaware Regiment did support the Continental Army during the war effort.

2. March 23, 1867 marks the incorporation of the Delaware Agricultural College (now known as the University of Delaware). The college was established as a land-grant institution with a focus on agricultural education and research.

3. In 1903, the Wilmington & Western Railroad was chartered on March 23. The historic railroad still operates today, offering scenic tours through the Brandywine Valley in northern Delaware.

4. On March 23, 1935, the DuPont Company introduced its new synthetic fiber, nylon, at the 1939 New York World's Fair. Nylon revolutionized the textile industry and is still used in a wide range of products today.

5. The Delaware State Chamber of Commerce was founded on March 23, 1913. The organization serves as a voice of the business community in Delaware, advocating for policies that promote economic growth and development in the state.