Before Washington, D.C. became the permanent home of the United States Supreme Court, first New York and then Philadelphia hosted its meetings. From 1791 to 1801 the Court met in Philadelphia. This paper reviews the highlights of the Court's cases during this formative decade. Among the most important developments in the Court's jurisprudence at this time involved international laws of the seas, state sovereignty, establishing procedures for parties appearing before the Court, and, what are still its most important institutional missions today, the interpretation of the Constitution and Congress' will. Given the importance placed upon the Bill of Rights today, it is ironic that none of the cases of the Court from its Philadelphia decade even mention it. (DB)