The Supreme Court Database is the definitive source for researchers, students, journalists, and citizens interested in the U.S. Supreme Court. The Database contains over two hundred pieces of information about each case decided by the Court between the 1791 and 2015 terms. Examples include the identity of the court whose decision the Supreme Court reviewed, the parties to the suit, the legal provisions considered in the case, and the votes of the Justices. The project started with Spaeth's original database.
The analysis tools allow you to select and summarize cases from the Modern or Legacy Database based on your needs.
Supreme Court Database is covered by Thomson Reuters Data Citation Index.
The Supreme Court Database is updated at least once a year. http://supremecourtdatabase.org/data.php?s=2 contains links to all previously released versions of the database to allow for replication.