This is the only example in all of USA history of an Amendment taking longer than four years. It is viewed by scholars as more of an anomaly than a precedent. In fact, SCOTUS in 1939 had indicated that an amendment could not linger around unratified for centuries. The fact is that if this amendment had been proposed any time in the recent past, the current consistent practice has been to attach a seven year time limit to the law proposing the Amendment. This was not the practice in 1789 at the time of the first congress.
This amendment was proposed at the same time as the first ten ratified amendments. There were a total of twelve amendments proposed. Ten of these were ratified and were later called "The Bill of Rights. This would have been one of "The Bill of Rights" if it had been ratified at that time.
After 1792, only two newer states had ratified it until 1983. The story of why and how it was ratified is in my opinion, very amusing.
Here is a link to a PDF which discusses the history of this amendment and why there was opposition to it in the 1700s. If you want to skip all the back history and get to the events that started in 1983, skip down to the page numbered 536 (this PDF is an excerpt from a larger publication) and look for the section with the heading "IV. Resurrection".
Below is an article from the New York Times in 1992. As you will see if you read the article, there was at first questions as to whether this ratification was legitimate because of a 1939 SCOTUS decision.
After this article was written seven more states ratified it, including two which had previously rejected ratifying back in the 1700s.