Congress may set a deadline for the ratification of a new constitutional amendment if it wishes to do so. Decided May 16, 1921 (argued March 22, 1921). Opinion of the Court: Willis Van Devanter → go there Overruled by Coleman v. Miller (1939) (in part) → go there Topic: Other. Dillon v. Gloss, 256 U.S. 368 (1921), was a case in which the Supreme Court of the United States held that Congress, when proposing a constitutional amendment under the authority given to it by Article V of the Constitution, may fix a definite period for its ratification, and further, that a seven-year period, such as that fixed by Congress in the resolution proposing the Eighteenth Amendment, is reasonable. Wiki link