How could studying historical context explain a historical event

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.

The inventor cocreated the film fred arts sneeze which was one of the first american movies

Who was marshall mcluhan and what did he have to do with communication theory?