Why did w. e. b. du bois call marcus garvey “the most dangerous enemy of the negro race in america”?
a. garvey’s views promoted african unity.
b. garvey’s views promoted integration.
c. garvey’s views promoted racial separation.
d. garvey’s views promoted african pride.

Is harry truman considered a hero or a tyrant for dropping the atomic bombs on hiroshima and nagasaki? (need a paragraph)

Ahistorian who compares the expansion of political systems to the expansion of economic systems is organizing history by o a. region b. culture c. period d. theme

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.