November 5, 1919 North Dakota: December 1, 1919 South Dakota: December 4, 1919 Colorado: December 12, 1919; December 15, 1919 Rhode Island: January 6, 1920 at 1:00 p.m. Kentucky: January 6, 1920 at 4:00 p.m. Oregon: January 12, 1920 Indiana: January 16, 1920 Wyoming: January 26, 1920 Nevada: February 7, 1920 New Jersey: February 9, 1920 Idaho: February 11, 1920 Arizona: February 12, 1920 New Mexico: February 16, 1920 Oklahoma: February 23, 1920 West Virginia: March 10, 1920, confirmed on September 21, 1920 Washington: March 22, 1920 Tennessee: August 18, 1920 The ratification process required 36 states, and completed with the approval by Tennessee. Though not necessary for adoption, the following states subsequently ratified the amendment. Some states did not call a legislative session to hold a vote until later, others rejected it when it was proposed and then reversed their decisions years later, with the last taking place in 1984. With Mississippi's ratification in 1984, the amendment was now ratified by all states existing at the time of its adoption in 1920. Legal challenges The U.S. Supreme Court unanimously upheld the amendment's validity in Leser v. Garnett. Maryland citizens Mary D. Randolph, "'a colored female citizen' of 331 West Biddle Street", and Cecilia Street Waters, "a white woman, of 824 North Eutaw Street", applied for and were granted registration as qualified Baltimore voters on October 12, 1920. To have their names removed from the list of qualified voters, Oscar Leser and others brought suit against the two women on the sole grounds that they were women, arguing that they were not eligible to vote because the Constitution of Maryland limited suffrage to men and the Maryland legislature had refused to vote to ratify the Nineteenth Amendment. Two months before, on August 26, 1920, the federal government had proclaimed the amendment incorporated into the Constitution. Leser said the amendment "destroyed State autonomy" because it increased Maryland's electorate without the state's consent. The Supreme Court answered that the Nineteenth Amendment had similar wording to the Fifteenth Amendment, which had expanded state electorates without regard to race for more than fifty years by that time despite rejection by six states (including Maryland). Leser further argued that the state constitutions in some ratifying states did not allow their legislatures to ratify. The Court replied that state ratification was a federal function granted under Article V of the U.S. Constitution and not subject to