Who became the first foreign dignitary to address the united states congress?

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.

This chart shows american troop strength during what conflict? a) gulf war b) korean war c) vietnam war d) world war ii

What are the biggest challenges facing the average american citizen today? explain.