Imperialists were the people who argued that it was the responsibility of advanced societies to civilize primitive cultures. Imperialists believed that civilized people had this duty because they had been lucky enough to have been born in a more civilized society. This ideology led many countries to engage in colonialism in countries that they considered to be "less developed."
The three enlightened monarchs of the 18th century were: 1. Joseph II of the Holy Roman Empire 2. Catherine the Great of Russia 3. Frederick the Great of Prussia