Hecho general: 80129 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 80129 is a boring number.
Trivia: 80129 is a boring number.
Fecha histórica: May 21st is the day in 879 that Pope John VIII gives blessings to duke Branimir and to Croatian people, considered to be international recognition of the Croatian state.