1. In 1781, the Battle of Groton Heights took place during the Revolutionary War. British forces under the command of Benedict Arnold successfully attacked and burned down the town of Groton, Connecticut.

2. On January 19, 1825, the Connecticut State Library was officially established. It is now the oldest public library in the United States.

3. In 1861, Hartford businessman Samuel Colt died on January 19. Colt was a prominent inventor and entrepreneur, known for his contributions to the development of the revolver, which became known as the "six-shooter."

4. The Litchfield Hills Road Race, a popular annual 7.1-mile race, was first held on January 19, 1977. The race takes place in Litchfield, Connecticut, and has attracted elite runners from all over the world.

5. In 2003, Connecticut Governor John Rowland was inaugurated for his third term on January 19. However, Rowland would later resign from office in disgrace amid a corruption scandal, becoming the first governor in Connecticut history to resign from office.