1. In 1660, the General Court of Connecticut passed an act prohibiting "Quakers and other notorious heretics" from settling in the colony. This law was enforced until the mid-1700s.

2. In 1942, during World War II, a fire broke out at the Hartford Armory, a military facility in Connecticut. The fire destroyed over $10 million worth of military equipment and supplies.

3. In 1954, the first nuclear-powered submarine, the USS Nautilus, was launched from the Electric Boat Company in Groton, Connecticut. The Nautilus went on to set many records during its service, including being the first submarine to travel under the North Pole.

4. In 1993, the Mashantucket Pequot Museum and Research Center opened in Mashantucket, Connecticut. The museum is dedicated to preserving and presenting the history, culture, and traditions of the Mashantucket Pequot Tribe.

5. In 2012, Connecticut became the first state in the U.S. to require food retailers to label products containing genetically modified (GM) ingredients. The law went into effect in 2013, and has since been followed by several other states.