Historical entry · HIST:laws/sherman-antitrust-act-1890

Sherman Antitrust Act of 1890

The foundational U.S. federal antitrust statute addressing restraints of trade and monopolization.

Updated Aug 7, 2026 Review due Aug 7, 2027
Context before interpretation

Historical frame

Kind
law
Period
Enacted July 2, 1890
Jurisdiction
United States

The Sherman Act supplies the statutory setting in which courts developed doctrines connecting market definition, power, conduct, agreement, and remedy.

Reader prompts

Questions to carry forward

  • Why is economic monopoly distinct from unlawful monopolization?
  • How can later cases change the operational meaning of brief statutory language?
Claim disciplineEvidence boundaries
  • This entry is historical education, not current legal advice; statutory text, later precedent, enforcement guidance, and facts all matter.

The Sherman Act is often summarized in one sentence, but its application grew through institutions and cases. Market power, exclusion, agreement, and remedy cannot be inferred from a firm-count label alone.

The act therefore belongs in the graph beside economic market analysis, not above it as a synonym. A legal conclusion requires the current doctrine and procedural posture.