Delaware is a U.S. state located on the Atlantic Coast in the Mid-Atlantic region of the United States. The state takes its name from Thomas West, 3rd Baron De La Warr. Delaware is the second smallest state in area (after Rhode Island). Estimates in 2007 rank the population of Delaware as 45th in the nation, but 6th in population density, with more than 60% of the population in New Castle County.
Before its coastline was first explored by Europeans in the 16th century, Delaware was inhabited by several groups of Native Americans. Delaware was one of the thirteen colonies participating in the American Revolution and on December 7, 1787, became the first state to ratify the Constitution of the United States, thereby becoming known as The First State. (source) Thank you Ron!