before becoming its own state in 1820, maine was part of which u.s. state?
Maine was part of Massachusetts before becoming a state in 1820.
The simplest version is: it was the District of Maine, under Massachusetts, until statehood in 1820.
Maine was part of Massachusetts before becoming a state in 1820.
The simplest version is: it was the District of Maine, under Massachusetts, until statehood in 1820.