What was scott joplin's most famous work

What industry was exempt from the child-labor laws passed in the factory act of 1833?

What is domino theory? how did domino theory impact the us involvement in the vietnam war

How did the treaty of versailles pave the way for the nazi party to gain control of germany? by limiting the territory of germany by making the german people pay for the war by assigning germany total responsibility for the war by creating resentment and anger among the german people