George Washington wrote of the period between the Treaty of Paris and the writing of the Constitution that the states were united only by a "rope of sand."Disputes between Maryland and Virginia over navigation on the Potomac River led to a conference of representatives of five states at Annapolis, Maryland, in 1786. One of the delegates, Alexander Hamilton, convinced his colleagues that commerce was too much bound up with other political and economic questions, and that the situation was too serious to be dealt with by so unrepresentative a body.
He advocated calling upon all the states to appoint representatives for a meeting to be held the following spring in Philadelphia. The Continental Congress was at first indignant over this bold step, but its protests were cut short by the news that Virginia had elected George Washington a delegate. During the next fall and winter, elections were held in all states but Rhode Island.
It was a gathering of notables that assembled at the Federal Convention in the Philadelphia State House in May 1787. The state legislatures sent leaders with experience in colonial and state governments, in Congress, on the bench and in the army. George Washington, regarded as the country's outstanding citizen because of his integrity and his military leadership during the Revolution, was chosen as presiding officer.
Prominent among the more active members were two Pennsylvanians: Gouverneur Morris, who clearly saw the need for national government, and James Wilson, who labored indefatigably for the national idea. Also elected by Pennsylvania was Benjamin Franklin, nearing the end of an extraordinary career of public service and scientific achievement. From Virginia came James Madison, a practical young statesman, a thorough student of politics and history and, according to a colleague, "from a spirit of industry and application...the best-informed man on any point in debate." Madison today is recognized as the "Father of the Constitution."
Massachusetts sent Rufus King and Elbridge Gerry, young men of ability and experience. Roger Sherman, shoemaker turned judge, was one of the representatives from Connecticut. From New York came Alexander Hamilton, who had proposed the meeting. Absent from the Convention were Thomas Jefferson, who was serving in France as minister, and John Adams, serving in the same capacity in Great Britain. Youth predominated among the 55 delegates -- the average age was 42.
The Convention had been authorized merely to draft amendments to the Articles of Confederation but, as Madison later wrote, the delegates, "with a manly confidence in their country," simply threw the Articles aside and went ahead with the building of a wholly new form of government.
They recognized that the paramount need was to reconcile two different powers -- the power of local control, which was already being exercised by the 13 semi-independent states, and the power of a central government. They adopted the principle that the functions and powers of the national government, being new, general and inclusive, had to be carefully defined and stated, while all other functions and powers were to be understood as belonging to the states. But realizing that the central government had to have real power, the delegates also generally accepted the fact that the government should be authorized -- among other things -- to coin money, to regulate commerce, to declare war and to make peace.
Source: U.S. Department of State