What was the importance of the Great Migration?

The Great Migration was one of the largest movements of people in United States history. Approximately six million Black people moved from the American South to Northern, Midwestern, and Western states roughly from the 1910s until the 1970s.

During the Great Migration, African Americans began to build a new place for themselves in public life, actively confronting racial prejudice as well as economic, political, and social challenges to create a Black urban culture that would exert enormous influence in the decades to come.

Explanation:

There it is

the correct answer is the first option "the bolkshevik revolution". the passage makes reference to many of important events that occured in the revolution, such as the assemblies, in this case the animals are gathered in an assembly after a protest, the murder of fellow partners, the speeches given by the leader of the revolution, among other aspects. the last choice is possible, but in this passage in particular it is not emphasized the fight between the characters, that is the two pigs, that represent lenin and stallin.