In contrast, the leaders of the Civil Rights Movement chose the tactic of nonviolence as a tool to dismantle institutionalized racial segregation, discrimination, and inequality. Indeed, they followed Martin Luther King Jr.'s guiding principles of nonviolence and passive resistance.
Answer:
the withdrawal of eleven southern states from the Union in 1860, leading to the Civil War. When the southern states secede from the Union, they were breaking all ties to the United States and forming their own government.
Explanation:
By supporting Rome’s enemies in other wars Rome led.
For the first one The institution of slavery contradicted the foundation of the American society because till this day people of color are still being treated horrendously due to their ancestors and their teachings to the newer generation. Also it contradicted it because Americans had their amendments but it didn’t apply to slaves .