Answer:
The central role of slavery in maintaining Florida's railroad
B.)
Some factors of the Great Depression were the burst of the 1920s credit bubble in the United States as well as the overinflated investing market during the same decade. It helped cause WW2 by radicalising Germans (really by the Nazis) against the rest of the world who they already blamed for their troubles during the 20s.
<span>3) destruction of the Aztec and Inca empires. Is the correct answer.</span>
1876 was an important year for America because it was America's 100th anniversary of the Declaration of Independence. This signifies the unity amongst Americans which establishes a strong centripetal force.