The American Revolutionary War, the Declaration of Independence, and the birth of the two-party system — this is a pivotal period in American history.
Only the private sector can create both positive and negative externalities.
The purpose of art during the Nazi regime was to portrait the racial idea that the Reich defended. The Nazis were fans of classic Greek and Roman art, that embodied heroic and romantic perfect humans. Paints were also like that, the Nazis banned the modern style of paint and defended the classical approach that exalted militarism, patriotism, and obedience.
In Plessy v. Ferguson, the Supreme Court ruled that facilities that were "separate but equal" were permissible under the US Constitution.
This allowed the Jim Crow laws to develop wherein African Americans went to different schools, ate at different restaurants or in different sections, and were generally segregated from the population