1. In 1732, the Connecticut Gazette, the first newspaper in the colony of Connecticut, was first published in New Haven. It was founded by James Parker, who also served as the printer.

2. On May 29, 1792, the first legislative session of the newly-formed Connecticut General Assembly was held in Hartford. This was after the adoption of a new state constitution that granted more power to the legislative branch.

3. In 1853, the first train journey was made on the New Haven and Northampton Railroad, which connected New Haven, Connecticut with Northampton, Massachusetts. The railroad was later merged with other railroads to form the New York, New Haven and Hartford Railroad.

4. On May 29, 1919, the first nonstop transatlantic flight was completed by a U.S. Navy flying boat, the NC-4, which landed in Lisbon, Portugal. The aircraft had started the journey from Newfoundland and made stops in the Azores and Morocco before reaching its final destination.

5. In 2010, the Constitution State became the first state in the United States to abolish the death penalty in more than four decades. The repeal was signed into law by Governor Dan Malloy on May 29, 2012.