What factors serve to unite people in terms of nationalism?

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.

What is the main inference that can be drawn from adam smith’s book the wealth of nations?

Name at least three countries neaolpeon controlled