Article V makes no mention of a time limit for ratifying constitutional amendments, and no amendment before the 20th century had one attached. The First Congress passed what became the 27th Amendment in 1789 without a deadline. It lay dormant for nearly two centuries before finally being ratified in May 1992, making it the slowest ratification in history. Seven states ratified it through 1792, then Ohio added approval in 1873, Wyoming in 1978, and Michigan completed ratification in 1992. The first ratification deadline ever imposed appeared in the text of the 18th Amendment (Prohibition) in 1917. In Coleman v. Miller, the Supreme Court ruled that determining whether an amendment with no time limit remains viable after a long period is a political question for Congress to decide based on prevailing political, social, and economic conditions, not a matter for the judiciary.