The signing of the Constitution on Sept. 17, 1787, happened after the American Revolution, which began on April 19, 1775. The French and Indian War, The Sugar Act and the Stamp Act took place earlier.
The French and Indian War, which started in 1754 and ended in 1763, was the start of direct confrontation between the colonies and England. The Sugar Act of 1764, one of various Navigation Acts, enforced the tax on molasses and other products. The Stamp Act in 1765 required all printed materials to be produced on stamped paper made in London. Though the U.S. Constitution was signed in 1787, it was not adopted until 1788.