Fatto generale: 228 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 228 is the sum of four consecutive primes (47 + 53 + 59 + 61).
Trivia: 228 is an uninteresting number.
Data storica: August 15th is the day in 1984 that the PKK in Turkey starts a campaign of armed attacks upon the Turkish military with an attack on police and gendarmerie bases in Şemdinli and Eruh.