The answer is Poland, Romania and Bulgaria were all Eastern block countries.
1- Critical thinking
2- Gathering of new ideas
3- Questioning the established power
4- Economic crisis
5- Social crisis
Any society that has intellectual production develops critical thinking in pursuit of its own growth. And also in what keeps political forces alert to maintain power or to make a change. In the exchange of ideas, new proposals are generated that promote the change of paradigm. These question the established power as well as society when it is overwhelmed by an economic crisis. Which often leads to riots and social crisis.
French Revolution:
With absolutism in decline economic hardships caused frequent revolts. They take more and more force the ideas of the Enlightenment go against the absolute power and the participation of the clergy in the questions of State. Among the thinkers of the revolution are Locke, Rousseau, Montesquieu and Voltaire.
The Powhatan Confederacy was a group of Native American tribes during the 17th century that settled in Virginia. Learn about how they rose in power under Powhatan, how they reacted to English colonists at Jamestown, and how they ended up in decline.
Answer:
C.) The union took control of the Mississippi River.
David Wilmot prohibited slavery in the territory