How Many American States Begin With the Letter "A"?

Of the four states beginning with the letter "A," Alabama has been in the union the longest, becoming a state in 1819. Alaska is the youngest state on the list, with a statehood admission date of 1959. Arkansas became a state in 1836, and Arizona joined the union in 1912. More state names start with the letters "M" and "N" than any other letters in the alphabet.