U.S. Constitution is ratified in Massachusetts.

[2/3-Peterson] Before a packed crowd at the Long Lane Street Meeting House, the convention votes to ratify by a margin of 187 to 168 with 9 delegates absent, making Massachusetts the sixth state to favor of ratification. The convention also recommends that the new constitution include what comes to be called the Bill of Rights, although the final version of those amendments is based more closely on those proposed in Congress by James Madison. To celebrate ratification, a model of a ship dubbed the Federal Constitution is hauled through the streets of Boston two days later. The U.S. Constitution is ratified and goes into effect when New Hampshire becomes the ninth state to ratify it on June 21, 1788.