Centuries: 2nd century - 3rd century - 4th century

Decades: 180s 190s 200s 210s 220s - 230s - 240s 250s 260s 270s 280s

Years: 225 226 227 228 229 - 230 - 231 232 233 234 235

• Pope Pontian succeeds Pope Urban I
• Patriarch Castinus succeeds Patriarch Ciriacus I as Patriarch of Constantinople