Fatto matematico: 1075 is the number of squares of functions from a set of 5 elements to itself.
Trivia: 1075 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: December 10th is the day in 1989 that Tsakhiagiin Elbegdorj announces the establishment of Mongolia's democratic movement that changes the second oldest communist country into a democracy.