What major change did Emperor Constantine start
that made his rule so
important in history?

Put this in your own words: the  marshall court  refers to thesupreme court  of the united states from 1801 to 1835, when johnmarshall  served as the fourth chief justice of the united states. themarshall court  played a major role in increasing the  power  of the judicial branch, as well as the  power  of the national government.