Answer:
Adding relevent facts to a document-based essay can help make its points more precise.
Explanation:
A document is a record of information. For the document to be efficient, it is important that this information is true and proven, especially when this document will be used as a basis for an essay, where the author will need to justify the veracity of the information presented in the essay. The best way to do this is to make this information present in the essay very precisely, through relevant facts in relation to the theme of the essay and the veracity of the information.
They had weapons, their societies were separated, which made it easier for them to take over
