Boston is the capital of the state of Massachusetts. Boston is the most populous city of the commonwealth of the state of Massachusetts. The state is located in the North Eastern region of United This city of Boston covers forty eight square miles which is approximately 124 km 2. Boston was named from England as the previous settlers were from England. The city of Boston harbours the very first US subway and public beach. Harvard which is the first college in North America was in Boston a couple of centuries ago.