Today is Admission Day for Maine, our 23rd state, admitted to the Union on March 15, 1820.

Maine is located in the northeastern part of the United States, in the New England area of the country, and joined the Union as part of the Missouri compromise.  It ranks 39th of the 50 states in geographical area, and 40th in population.

Although the origin of the state’s name is debatable, the most probably theory is ...