1. On March 27, 1626, the first settlement of the Massachusetts Bay Colony was established in present-day Salem by a group of English Puritans.
2. On March 27, 1775, Paul Revere embarked on his famous midnight ride, warning the colonists of the approaching British troops and prompting the start of the American Revolution.
3. March 27, 1839, marked the first demonstration of photography in the United States, when Daguerreotype was presented at a meeting of the Academy of Arts and Sciences in Boston.
4. On March 27, 1875, the Massachusetts Society for the Prevention of Cruelty to Animals was established, the second such organization in the United States.
5. March 27, 1965, saw the first public demonstration of the Minuteman missile, which was developed and tested at Hanscom Air Force Base in Bedford, Massachusetts.