Fatto generale: 70511 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 70511 is an uninteresting number.
Trivia: 70511 is an uninteresting number.
Data storica: January 18th is the day in 1915 that Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.