The Eighth and Ninth Circuits Act of 1837 (5 Stat. 176) was a federal statute which increased the size of the Supreme Court of the United States from seven justices to nine, and which also reorganized the circuit courts of the federal judiciary. The newly created Eighth and Ninth circuits were designed to alleviate the judicial needs of newly-created western states. The Act became law on March 3, 1837, at the end of the Jackson administration. — Eighth and Ninth Circuits Act of 1837