Of the following products which is Connecticut not the leader in production of tires helicopters jet engine aircraft engines or submarines

Tires

Explanation:

During much of the 20th century, Armstrong was a national leader in the production of tires in the US, but it ceased operations in Connecticut in 1980. It continued operating in other states until it was sold to Pirelli in 1988.

Connecticut is leader in the production of:

abraham lincoln issued the preliminary emancipation proclamation on september 22nd, 1862. it stipulated that if the southern states did not cease their rebellion by january 1st, 1863, then proclamation would go into effect.

the secretary of state, appointed by the president with the advice and consent of the senate, is the president's chief foreign affairs adviser. the secretary carries out the president's foreign policies through the state department and the foreign service of the united states.