This pivotal court case applied the protection of free speech to the states though the due process clause of the 14th amendment - beginning the process of "incorporation

Supreme Court of United States

Explanation:

The 14th Amendment in the Constitution is one of the important amendment done in the Constitution of United Sates.  

The 14th amendment of the constitution was ratified in the year 1868. It is important court case of the Supreme court that granted citizenship to all the people born in the United States or naturalized in the U.S.

The Due process of law states that all persons who were born or naturalized in the U.S. and are subjected to the jurisdiction are declared the citizens of the United States of America.

The Supreme Court said that no state has any right to deprive any person's life, property or one's liberty.  

not really sure i needed the points. sorry