Answer:
The Inca civilization built stone-paved roads over mountains.
It would be “Scott Joplin” as he was the most common musician during the Tin Pan Alley era.
Explanation:
The Compromise of 1877 was an informal agreement between southern Democrats and allies of the Republican Rutherford Hayes to settle the result of the 1876 presidential election and marked the end of the Reconstruction era
Nikita Khrushchev and Mikhail Gorbachev. Hope this helps you :D