Which incident led to congress declaring war on spain

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 researchers data could him determine which of the following types of information about great britain during the industrial revolution

N1947, the united nations create a country