What was a major difference between the Knights of Labor and the American Federation of Labor? The American Federation of Labor included African Americans, but the Knights of Labor excluded them.
The Knights of Labor included mostly skilled workers, but the American Federation of Labor included mostly unskilled workers.
The American Federation of Labor included women, but the Knights of Labor excluded them.
The Knights of Labor included African Americans, but the American Federation of Labor excluded them.

Explanation:

The Knights of Labor included African Americans, but the American Federation of Labor excluded them.

The major difference between the two labor unions, Knights of Labor and American Federation of Labor was that the former included African Americans in their labor force, while the latter excluded them.

The Knights of Labor included unskilled workers though, compared to American Federation of Labor who were mostly made up of skilled workers.

D.)

Explanation:

The Knights of Labor included African Americans, but the American Federation of Labor excluded them.

b. great plains

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b. the 200th birthday of the united states