1. On November 9, 1892, the Connecticut State Library was opened to the public for the first time. Housed in the State Capitol building, the library was founded in 1854 as the State Library and Supreme Court Library combined. Today, the Connecticut State Library serves as the principal library for state government.

2. In 1965, on November 9, the Hartford Whalers were founded as a professional hockey team. The team would be based in Hartford until 1997, when it was moved to North Carolina and became the Carolina Hurricanes. The Whalers are still fondly remembered by many Connecticut residents.

3. The first electric railroad in the United States began operation on November 9, 1888, in New Haven. The line ran between the New Haven Green and Westville, and was operated by the New Haven and West Haven Horse Railroad Company. The system was electrified using overhead wires, a revolutionary technology at the time.

4. November 9, 1904, marked the end of the 1904 Connecticut gubernatorial election, which was one of the closest in state history. Democrat Henry Roberts defeated Republican George L. Lilley by just 473 votes, a margin of less than 0.5%. The election was later contested and went all the way to the Connecticut Supreme Court, which upheld Roberts' victory.

5. On November 9, 2012, Connecticut became the 17th state to legalize medical marijuana. The law allows patients with certain qualifying conditions to use marijuana as a treatment under close supervision by their doctors. Today, Connecticut has one of the most tightly regulated medical marijuana programs in the country.