Fatto matematico: 13595 is an unremarkable number.
Trivia: 13595 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: March 21st is the day in 1965 that Martin Luther King, Jr. leads 3,200 people on the start of the third and finally successful civil rights march from Selma to Montgomery, Alabama.