Which han dynasty reform was reintroduced during the tang dynasty?

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.

How were native american leaders and egypt leaders similar

An outcome of which rerutions) resulted in conflict and a temporary return to absolute de