In Garner v. Louisiana, the U.S. Supreme Court overturns the convictions of 16 African American demonstrators for disturbing the peace in three lunch counter sit-ins at all-white restaurants in Baton Rouge, La., to protest segregation. The cases were consolidated under Garner v. Louisiana. Referring to earlier court opinions protecting symbolic speech, Justice John Harlan explains that a sit-in demonstration “is as much a part of the free trade of ideas as is verbal expression.”