In 1890, the united states passed the sherman antitrust act. what was the purpose of the act?

Approved July 2, 1890, The Sherman Anti-Trust Act was the first Federal act that outlawed monopolistic business practices. The Sherman Antitrust Act of 1890 was the first measure passed by the U. S. Congress to prohibit trusts

It was the first legislation passed to address oppressive business practices associated with cartels and monopolies.