Marshall.
Congress did not have power to modify the Constitution through regular legislation because Supremacy Clause places the Constitution before the laws. In so holding, Marshall established the principle of judicial review, i.e., the power to declare a law unconstitutional.
Hernan Cortés invaded Mexico in 1519 and conquered the Aztec Empire.
World War I generated jobs at home in England and in the military.
Answer: early Spanish historian and Dominican missionary who was the first to expose the oppression of indigenous peoples by Europeans in the Americas and to call for the abolition of slavery there