Here are 5 interesting facts about June 9 in Delaware history:

1. On June 9, 1772, the first recorded military company was formed in Wilmington, Delaware. The company, known as the Wilmington Blues, was made up of local citizens who volunteered to serve in a militia to protect the community from threats of attack.

2. June 9, 1847 marked the completion of the Delaware and Maryland Railroad, which connected Wilmington, Delaware to Baltimore, Maryland. This new transportation link helped to foster economic growth and development in the region.

3. On June 9, 1924, Delaware became the first state to ratify the 20th Amendment to the U.S. Constitution, which established the start of a new presidential and congressional term on January 20 rather than March 4.

4. June 9, 1959 saw the dedication of the DuPont Planetarium and Space Theatre at the Delaware Museum of Natural History in Wilmington. The planetarium featured state-of-the-art projection technology and was one of the few in the United States to have a full-dome projection system.

5. On June 9, 1977, Delaware native Thurman Adams, Jr. was elected as President pro tempore of the Delaware Senate, a position he held until his death in 2009. Adams was the longest-serving member of the Delaware General Assembly and was known for his efforts to improve public education and to advocate for the interests of rural Delaware.