the term to describe that would be: "historical context".
A History writer
because
you would describe a fortune cookie writer as a fortune cookie writer.
He would describe the preceding events in a prologue at the beginning of the book.
It's a great chance for a writer to be known as a writer him/herself.
The writer does not directly show an attitude toward characters.
The phrase "it is written" implies that something that has occurred in your life was meant to happen just as it did. It also implies that there is a "writer" of the events of our lives. A creator of the events of our lives, who allows paths to cross and events to happen. How we respond to these events, people and places determines how we fulfill our destinies or how we do not.
Karl Marx had a great influence on Lenin.
flashback
really
he was the leading writer of Latin prose.
seen & heard