The schenck v. united states case ruled that the first amendment does not give american citizens the right to freedom of speech when it encourages insubordination. the case is also famous for establishing the what?

It establishes the right to freedom of speech when he was convicted of a violation of the Espionage Act of 1917. He defended himself using the first amendment that heavily emphasized his rights to freedom of speech when he distributed fliers to American people telling them that they have the right to have involuntary servitude during the war.