This variable contains the year, month, and day that the Court announced its decision in the case. For volumes 2-107 of the U.S. Reports (1791-1882), we relied on Dates of Supreme Court Decisions and Arguments (http://www.supremecourt.gov/opinions/datesofdecisions.pdf), prepared by Anne Ashmore of the Library of the Supreme Court, because many early reporters do not list the date of decision.