They had to face slavery, and whites had the authorities that colored people didn't.
Answer:
blockading American ports
Social stratification refers to a system which people in a given community are divided into layers according to their relative property, power, and prestige. Great Britain has a class system that is divided into a class system that is divided into lower, middle and upper classes of which only 1% of the population falls under the upper class of the most powerful and highly educated, while the rest is evenly divided into middle and lower (working) class.
The former Soviet Union mainly focuses on socialism with no division of social classes, through this citizens contribute their labour to the common good and receive according to their needs.
The Enlightenment was an incredibly a revolutionary movement because it ushered in a new era of knowledge in the sciences and arts--literally a "re-birth" of the classical ideals of what a civilization should be like--thus ending a period of stagnant "Dark Ages".
