Final answer:
In the story The Man without a Country, Danforth does not tell Nolan about the last years of history. Instead, Nolan is isolated from news about his country for almost 50 years as punishment for treason. The references provided do not detail an interaction between Danforth and Nolan regarding recent history.
Step-by-step explanation:
In the short story The Man without a Country by Edward Everett Hale, the character named Danforth does not directly tell Nolan the last how many years of history.
Instead, Nolan is deprived of his country and its news as a punishment for his treasonous act. The references provided do not contain the specific information regarding Danforth telling Nolan about recent history, but they convey a theme of the passage of time and its effects on different characters in literature.
However, if we consider commonly discussed themes in the story, Danforth might represent the outside world and its progression to Nolan, who is isolated and unaware of the changes. Nolan learns of American history only just before his death, 50 years after his sentence began.