reorganized. Since then, the geographical outline of the circuits has only been altered by the addition of new states to circuits and the division of two large circuits in the twentieth century. The geographical reorganization of the circuits in 1866 coincided with the broader effort of the Republican majority in Congress to reduce what it considered the disproportionate influence enjoyed by the southern states before the Civil War. Between 1837 and 1862, five of the nine circuits comprised exclusively slave states. The tradition of appointing a justice from each circuit allowed Southern slaveowners to dominate the Supreme Court. After reducing the number of all-southern circuits in 1862, Congress in 1866 left only two circuits that comprised only former slave states, and only one that comprised only former Confederate states. The reduction in the size of the Supreme Court nullified the pending nomination of Henry Stanbery to the tenth seat on the Court and prevented President Andrew Johnson from appointing a justice during the remainder of his term. The legislation owed less to the Republican opposition and to Johnson, who signed the act, than to the efforts of Chief Justice Salmon P. Chase. The first draft of the bill proposed a return to nine justices, thus preventing tie votes on the Court and providing a justice for each circuit. In private communication with influential members of Congress and fellow justices, Chase urged a further reduction in the number of seats in hopes of winning approval for an increase in the justices' salaries. Congress did not approve an increase in judicial salaries until 1871, after it had returned the size of the Court to nine seats. References ''Portions of this article based on public domain text from the Federal Judicial Center. Further reading 1866 in American law United States federal judiciary legislation History of the Supreme Court of the United States 39th United States Congress