1. The USS Nautilus launched on July 11, 1952, and became the world's first nuclear-powered submarine. The submarine was built in Groton, Connecticut, and went on to play an important role in the Cold War.

2. On July 11, 1767, Connecticut became the first colony to declare itself free from British rule. This declaration of independence came nearly a decade before the signing of the Declaration of Independence.

3. The Connecticut Dredge and Dock Company was founded on July 11, 1924. The company played a significant role in shaping the Connecticut shoreline, dredging harbors and building seawalls.

4. On July 11, 1864, the Battle of Fort Stevens occurred during the American Civil War. Connecticut troops played a key role in defending Washington D.C. against Confederate forces led by General Jubal Early.

5. The Connecticut State Police were established on July 11, 1935. The organization was created in response to the increasing need for law enforcement during the Prohibition era and has since become one of the most respected police agencies in the nation.