Maine is the northeast-most state in the United States. The capital is Augusta, although the city of Portland, farther south, is the largest in the state. Maine became the 23rd state, on March 15, 1820. It was previously a part of Massachusetts. Commercial Fishing, including lobster trapping, is a traditional and still vital part of the coastal economy. Tourism is a large industry in southern Maine because of its many beaches and picturesque coastal villages. Southern Maine is the part of the state that has the most people. Many other areas, to the North, are far more rural.