Cultural Diplomacy is a social policy in Civilization V. It is part of the Patronage tree and requires Scholasticism. In order to reach the highest levels of influence with Allied States, wise rulers send them the country's best Artists. They enchant the locals with mesmerizing musical performances, exhibitions of great Art and dazzling shows of ballet and dancing. Demonstrating how superior the empire's art is, compared to local art, has the power of impressing the City-State's traders, who do their best to present the Luxuries they offer on your market at the best prices and conditions.