Which of the Progressive goals was most important?

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?

How did african americans the union during the civil war? a. by serving as representatives in congress b. by enlisting in the military to fight c. by organizing massive slave revolts in the south d. by negotiating for peace with the confederacy

Which piece of information would most a historian create an interpretation of this photograph of works in a factory?