Delaware became the 1st state in 1787. The Delaware quarter features Caesar Rodney on horseback (signer of the Declaration of Independence and president of Delaware during most of the American Revolution), and the state nickname: "The First State" (public domain image on Wikipedia)
The First State
The First State was designated as Delaware's official nickname in 2002 following a request by Mrs. Anabelle O'Malley's first grade class at Mt. Pleasant Elementary School. Delaware was the first of the 13 original states to ratify the United States Constitution on December 7, 1787.
Other Delaware Nicknames
The Diamond State: According to legend, Thomas Jefferson gave this nickname to Delaware - he described Delaware as a "jewel" among states due to its strategic location on the Eastern Seaboard.
Small Wonder: This nickname was given to Delaware due to its size, the contributions it has made to our country, and the beauty of Delaware.