Maine became the 23rd state in 1820 (see statehood order) - Maine's
state quarter features Pemaquid Point lighthouse, a white pine (state tree), and
a schooner at sea (the schooner Bowdoin was designated state vessel in 1987)
public domain image on Wikipedia - see all 50 STATE QUARTERS
What does the word Maine mean?
The name Maine is probably a practical nautical term which refers to the region being a mainland (separate from the many surrounding islands). Reference to the area as "Maine" in writing first appeared in 1622.