Which Amendment Took The Longest Time To Be Ratified What Was It?

Which Amendment Took The Longest Time To Be Ratified What Was It? Which Amendment to the Constitution took the longest to ratify? The 27 th took 202 years, 7 months, 12 days. Twelve amendments were proposed to Congress on September 25, 1789. What is the longest amendment to ratify? As of 2020, the Twenty-seventh amendment