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This Day in American History

September 21

1 historic event on this date

Legislation1789

Federal Judiciary Established

Congress passed the Judiciary Act of 1789, establishing the federal court system including the Supreme Court with a Chief Justice and five Associate Justices, along with district and circuit courts. President Washington nominated John Jay as the first Chief Justice.

Why It Matters

The Judiciary Act created the third branch of government as a functioning institution, establishing the federal court structure that would become the guardian of constitutional rights and the rule of law.

Explore the Principles Behind the History

Every event in American history connects to the founding principles. Discover the ideas that shaped these moments.

View the 28 Founding Principles