how does the fact add to the author’s portrayal of this period in his life

A fact can add to the author's portrayal of a period in his life if it clearly supports the point being made by the author.
A fact will only support a point if it gives more weight to the claims made by the author. For instance. If the author says that he suffered poverty at a period in his life, a fact that can support this is one that shows the bad living conditions that the writer had to put up with.
Another supporting fact could be one that points to the lack of financial resources.
Learn more about a supporting fact here:
https://brainly.com/question/9070383
#SPJ1