The year the kingdom of Osroene became a province of the Roman Empire.
215
The area code for the greater Cleveland, Ohio area
217
The year Elagabalus became Emperor.
The year Chinese general Yue Jin died
An octave below the tuning standard.
Ccxxi
223
x = 112 x 2
15[sup]2[/sup]
The year 979 Ab Urbe Condita
That sitcom set in Washington: 227 (TV series) - Wikipedia
Marla Gibbs and Jackée Harry live here.
^ ETA: YOU STOP THAT!
Calling Biloxi
229
230
St. John, Indiana, to Panama City, Florida, US highway route
The most stable isotope of Thorium.