Fatto generale: 2569 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2569 is an unremarkable number.
Trivia: 2569 is an unremarkable number.
Data storica: January 12th is the day in 1966 that Lyndon B. Johnson states that the United States should stay in South Vietnam until Communist aggression there is ended.