1620 Pilgrim Fathers land at what becomes Plymouth in Massachusetts.
1630 The city of Boston, Massachusetts is founded.
1648 Margaret Jones is hanged in Boston for witchcraft in the first such execution for the Massachusetts colony.
1656 Massachusetts enacts the first punitive legislation against the Religious Society of Friends (Quakers). The marriage of church-and-state in Puritanism makes them regard the Quakers as spiritually apostate and politically subversive.
1786 Shays' Rebellion, an armed uprising of Massachusetts farmers, begins in response to high debt and tax burdens.
1788 Massachusetts becomes the sixth state to ratify the United States Constitution.
1874 A flood on the Mill River in Massachusetts destroys much of four villages and kills 139 people.
1930 W1XAV in Boston, Massachusetts broadcasts video from the CBS radio orchestra program, ''The Fox Trappers''. The broadcast also includes the first television commercial in the United States, an advertisement for I.J. Fox Furriers, who sponsored the radio show.
1970 Vietnam War: The Supreme Court of the United States votes 6 to 3 against hearing a case to allow Massachusetts to enforce its law granting residents the right to refuse military service in an undeclared war.