Hecho general: 6813 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 6813 is the smallest number whose 6^{th} power has 24 digits.
Trivia: 6813 is an unremarkable number.
Fecha histórica: August 26th is the day in 1748 that the first Lutheran denomination in North America, the Pennsylvania Ministerium, is founded in Philadelphia, Pennsylvania.