The Constitution of the Commonwealth of Massachusetts is the fundamental governing document of the Commonwealth of Massachusetts, one of the 50 individual states that make up the United States of America. It consists of a preamble, declaration of rights, description of the principles and framework of government, and articles of amendment.

Created by the Massachusetts Constitutional Convention of 1779, the document was primarily authored by American founding father and future president John Adams. Following its approval by convention delegates, it was approved by voters on June 15, 1780, and became effective October 25 of that year.

The Massachusetts Constitution was the last to be written among the initial thirteen U.S. states. It was unique in being structured with chapters, sections and articles, as opposed to being a list of provisions. It served as a model for the U.S. Constitution, drafted seven years later, both structurally and substantively, and also influenced later revisions of many other state constitutions.

The Massachusetts Constitution is among the oldest functioning written constitutions in continuous effect in the world, predated only by sections of the Constitution of San Marino and Magna Carta. It was also the first constitution in history to be created by a convention called for that purpose, rather than by a legislative body.

History

In the spring of 1775, Adams took the position that each state should call a special convention to write a constitution and then submit it to a popular vote. He told the Continental Congress that:

The legislative body of Massachusetts, known as the Massachusetts General Court, instead drafted its own version of a constitution and submitted it to the voters, who rejected it in 1778. That version did not provide for the separation of powers, nor did it include a statement of individual rights. The General Court then organized the election of delegates from each town to participate in a convention that would draft a constitution and submit their work to a popular vote with the understanding that its adoption would require approval by two-thirds of the voters.

The convention sat from September 1 to October 30, 1779. Its 312 members chose a committee of thirty members to prepare a new constitution and declaration of rights. That committee asked Adams to draft a declaration of rights. It appointed a subcommittee of James Bowdoin, Samuel Adams, and John Adams to draft the constitution and that trio delegated the drafting to John Adams alone. He later wrote that he constituted a "sub-sub committee of one". An article on religion was referred to members of the clergy, which resulted in a form of religious establishment entirely unlike that later adopted at the federal level.

Male voters 21 years or older ratified the constitution and declaration of rights at the convention on June 15, 1780, and it became effective on October 25, 1780.

Preamble

The preamble of the constitution provided a model that was drawn on when the United States Constitution was composed a few years later, including some phrases near the end. It reads:

Declaration of Rights

"Part the First: A Declaration of the Rights of the Inhabitants of the Commonwealth of Massachusetts" consists of thirty articles. The first states:

This article was the subject of a landmark case in 1781 before a Massachusetts court sitting in Great Barrington, Brom and Bett v. Ashley. Elizabeth Freeman (whose slave name was "Bett"), a black slave owned by Colonel John Ashley, sued for her freedom based on this article. The jury agreed that slavery was inconsistent with the Massachusetts Constitution and awarded Freeman £5 in damages and her freedom. A few years later, Quock Walker, a black slave, sued his master for false imprisonment; the jury found for Walker and awarded him damages of £50. His master was then subject to criminal prosecution for assault and battery against Walker and was found guilty by a jury, which imposed a fine of 40/- (£2). In this manner, slavery lost any legal protection in Massachusetts, making it a tortious act under the law, effectively abolishing it within the Commonwealth.

In 1976 by amendment Article CVI, this article was amended to change the word "men" to "people". That amendment also added an additional sentence: "Equality under the law shall not be denied or abridged because of sex, race, color, creed or national origin."

This article was also the basis for the 2003 Supreme Judicial Court's ruling in Goodridge v. Department of Public Health required the Commonwealth to extend marriage rights to same-sex couples on an equal basis with different-sex couples.

The next several Articles within the "Part the First" in the original 1780 Constitution of Massachusetts called upon the people of the Commonwealth as being their "right as well as the duty of all men" (Article II) to a strong religious conviction and belief.