Fatto generale: 1678 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 1678 is a boring number.
Trivia: 1678 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: August 4th is the day in 1936 that Prime Minister of Greece Ioannis Metaxas suspends parliament and the Constitution and establishes the 4th of August Regime.