The United States' oldest continually operating art museum, the Wadsworth Atheneum, opened here in 1844.  
Pratt and Whitney, a firm which made a device that could accurately measure distance down to one ten thousandth of an inch, was included in a recent Smithsonian exhibit on this "Place of Invention". A mill in this city provided the cloth for the suit worn by George Washington at his first inauguration.  The United States' oldest continually operating art museum, the Wadsworth Atheneum, opened here in 1844.  Little Miss 1565 and 166 others were killed in a circus fire in this city in 1944.  A Patent Firearms Manufacturing Company was established here by (*) Samuel Colt.  A popular nickname for this city stems from it being where CIGNA, Mass Mutual and Travelers are headquartered.  It's not located in Missouri, but this city attracts tourists visiting the Mark Twain House.  For 10 points, name this "insurance capital of the world", and site of a treasonous convention during the War of 1812.
Pratt and Whitney, a firm which made a device that could accurately measure distance down to one ten thousandth of an inch, was included in a recent Smithsonian exhibit on this "Place of Invention".
Hartford, Connecticut 