The U.S. Congress passes the Sherman Antitrust Act.

The United States Congress is the legislative branch of the federal government of the United States. It is a bicameral legislature, including a lower body, the U.S. House of Representatives, and an upper body, the U.S. Senate. They both meet in the United States Capitol in Washington, D.C.

The Sherman Antitrust Act of 1890 is a United States antitrust law which prescribes the rule of free competition among those engaged in commerce and consequently prohibits unfair monopolies. It was passed by Congress and is named for Senator John Sherman, its principal author.