In what year did New Hampshire ratify the U.S. Constitution?

What is the two-letter postal abbreviation for New Hampshire? Which state uses the postal abbreviation "NH"? Concord is the capital of which state? What is the largest city in New Hampshire by population? What is the official nickname of New Hampshire? What is the state bird of New Hampshire? What is the state flower of New Hampshire? What is the two-letter postal abbreviation for New Jersey?