Boston is the capital and largest city of the Commonwealth of Massachusetts, and is one of the oldest cities in the United States. The largest city in New England, Boston is considered the economic and cultural center of the region, and is sometimes regarded as the unofficial "Capital of New England." Boston city proper had a 2007 estimated population of 608,352, making it the twenty-first largest in the country. Boston is also the anchor of a substantially larger metropolitan area called Greater Boston, home to 4.4 million people and the tenth-largest metropolitan area in the country. Greater Boston as a commuting region includes parts of Rhode Island, New Hampshire and Maine; it includes 7.4 million people, making it the fifth-largest Combined Statistical Area in the country.

In 1630, Puritan colonists from England founded the city on the Shawmut Peninsula. During the late eighteenth century Boston was the location of several major events during the American Revolution, including the Boston Massacre and the Boston Tea Party. Several early battles of the American Revolution, such as the Battle of Bunker Hill and the Siege of Boston, occurred within the city and surrounding areas. Through land reclamation and municipal annexation, Boston has expanded beyond the peninsula. After American independence was attained Boston became a major shipping port and manufacturing center, and its rich history now attracts 16.3 million visitors annually.