The latest constitution created is the United States Constitution, which was originally drafted and signed on September 17, 1787. It was ratified by the required nine states on June 21, 1788, and went into effect on March 4, 1789
. Although the original constitution dates back to 1787, it has been amended 27 times, with the most recent amendment ratified in 1992
. These amendments update and modify the constitution but do not constitute a new constitution. Therefore, the latest constitution itself was made in 1787, with its last amendment made in 1992.
