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The Constitution of the Northern Mariana Islands became effective on January 1, 1978.
The US Constitution was made in 1878
It became effective July 4, 1776.
The Constitution of the Commonwealth of Massachusetts Following approval by town meetings, the Constitution was ratified on June 15, 1780, became effective on October 25, 1780, and remains the oldest functioning written constitution in continuous effect in the world.Following approval by town meetings, the Constitution was ratified on June 15, 1780, became effective on October 25, 1780, and remains the oldest functioning written constitution in continuous effect in the world. Although the country of San Marino is the oldest surviving republic still in existence, it has a Constitution that is not from one single written source. The San Marino Constitution was adopted in 1974 and then later amended in 2002.
The "Supreme Law of the Land" is the US Constitution.Delegates to the Constitutional Convention in Philadelphia began writing the US Constitution in May 1787 and created the completed version on September 17, 1787. The Constitution was adopted by the delegates that day, was ratified by the states on June 21, 1788, and became effective March 4, 1789.