Thompson v. Oklahoma, 487 U.S. 815 (1988), was the first case since the moratorium on capital punishment was lifted in the United States in which the U.S. Supreme Court overturned the death sentence of a minor on grounds of "cruel and unusual punishment." The holding in Thompson was expanded on by Roper v. Simmons (2005), where the Supreme Court extended the "evolving standards" rationale to those under 18 years old.