Hecho matemático: 55809 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Trivia: 55809 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fecha histórica: October 18th is the day in 1967 that the Soviet probe Venera 4 reaches Venus and becomes the first spacecraft to measure the atmosphere of another planet.