The second industrial revolution in the united states lasted from the?

Ineed with what i should write for my research paper. my topic is history of slavery. 1800 words. all i need is what to write in each paragraphs. like when the research paper has titles for each paragraph and it explains the tile in each paragraph. for example when did slaverh begin? why did it begin like an outline.

After world war one, how did the allied countries hope to keep germany from becoming too powerful again?

Somebody save the ! what was greek math and science also medicine