In 1787, which state became the first to ratify the Constitution?

In which 1783 treaty did "His Britannic Majesty" acknowledge the United States to be "free, sovereign and independent"? Which 1783 treaty, negotiated by John Adams, Benjamin Franklin and John Jay, ended the Revolutionary War? At 81, which man was the oldest delegate at the 1787 Constitutional Convention? Which 1787 law governing the area north of the Ohio River became a model for territories entering the Union? Who served as U.S. vice president from 1789 to 1797? Which document went into effect in 1789? In 1789, which French landmark was stormed and its governor killed? In the 1790s, the new French tricolor replaced a royal flag bearing which floral symbol?