Fatto generale: 7218 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 7218 is an unremarkable number.
Trivia: 7218 is a boring number.
Data storica: October 5th is the day in 1903 that Sir Samuel Griffith is appointed the first Chief Justice of Australia and Sir Edmund Barton and Richard O'Connor are appointed as foundation justices.