What law helped end monopolies like standard oil?

The Sherman Antitrust Act of 1890 was a landmark piece of legislation aimed at curbing monopolies and promoting competition in the marketplace. It made it illegal to restrain trade or commerce through monopolistic practices. The act was instrumental in the dissolution of Standard Oil in 1911, as the Supreme Court ruled that the company violated the Sherman Act by maintaining a monopoly in the oil industry. This legislation laid the groundwork for subsequent antitrust laws and enforcement efforts.