Connecticut’s official state shellfish is the Eastern oyster.

Connecticut’s official state song is “Yankee Doodle Dandy.”

The Colt revolver was invented in Connecticut in 1836.

The sewing machine was invented in Connecticut in 1846.

There are 91 state parks in Connecticut.

The hamburger was invented in Connecticut in 1895.

The electric light socket with pull chain was invented in Connecticut in 1896.

The lollipop was invented in Connecticut in 1908.

The Erector set was invented in Connecticut in 1911.

The Frisbee was invented in Connecticut in 1920.

The vacuum cleaner was invented in Connecticut in 1933.

The Polaroid camera was invented in Connecticut in 1934.

The helicopter was invented in Connecticut in 1939.

The color television was invented in Connecticut in 1948.

The tape measure was invented in Connecticut in 1868.

David Bushnell officially launched the first submarine in Connecticut in 1775.

The first traitor in American history was Benedict Arnold, a native of Norwich, Conn.

The first law school in Connecticut was founded by Tapping Reeve in Litchfield in 1784.

The first American cookbook was written by Amelia Simmons of Hartford in 1796.

The first state house in the country was built in Hartford in 1796.

The first amusement park to be built in Connecticut was Lake Compounce Theme Park in Bristol, which opened in 1846.

The first football game to be played at Yale University took place in 1873.

The first telephone exchange in Connecticut was set up in 1878. It had 12 subscribers.

The first three-ring circus staged by Bethel’s P.T. Barnum took place in 1881.

The highest point in the state of Connecticut is atop Mount Frissel in Salisbury. Its peak is 2,380 feet above sea level.

The first woman to be elected governor in Connecticut was Ella Grasso, who was voted into office in 1975.

There are 8,400 miles of rivers and streams within the state of Connecticut.

There are 169 towns in the state of Connecticut.

There are 30 state forests — 144,768 acres’ worth — in the state of Connecticut.

The geographic center of Connecticut is within the town of East Berlin.

The Alfred Hitchcock film Stranger on a Train was filmed in part where the Danbury Railway Museum now stands.

The Wadsworth Atheneum in Hartford was the first public art museum in the country.

The New England Air Museum, in Windsor Locks, Conn., is the largest aviation museum in the Northeast.

Square dancing is the official state dance of Connecticut.

The Travelers Insurance Co., based in Hartford, was the first to use advertising on matchbook covers, in 1898.

Comstock, Ferre & Co., in Wethersfield, Conn., is the oldest continuously-run seed company in America.