Which state entered the Union as a free state under the Missouri Compromise of 1820?

Which state, whose name comes from an Aleut word, means "mainland" or "great land"? Which two states have "Dakota" in their names, admitted on the same day in 1889? Which state was admitted to the Union in 1863 after splitting from Virginia during the Civil War? Which state separated from Massachusetts to become a state in 1820? Which state was the first to allow women to vote, while still a territory in 1869? Which state has the motto "Live Free or Die"? Which state's license plates historically carry the slogan "First in Flight"? Which state's license plates carry the slogan "Famous Potatoes"?