Hecho general: 70858 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 70858 is a boring number.
Trivia: 70858 is a boring number.
Fecha histórica: December 31st is the day in 1998 that the European Exchange Rate Mechanism freezes the values of the legacy currencies in the Eurozone, and establishes the value of the euro currency.