The United States Supreme Court finds that baseball is primarily a sport and not a business in its ruling on the Federal Baseball Club v. National League case. In using this argument, the court rules that baseball is not subject to antitrust laws nor to standard interstate commerce regulations.

On May 29, 1922 — The United States Supreme Court finds that baseball is primarily a sport and not a business in its ruling on the Federal Baseball Club v. National League case. In using this argument, the court rules that baseball is not subject to antitrust laws nor to standard interstate commerce regulations.

Source:
Baseball Reference May 29