Centuries: 2nd century - 3rd century - 4th century
Decades: 200s 210s 220s 230s 240s - 250s - 260s 270s 280s 290s 300s
Years: 252 253 254 255 256 - 257 - 258 259 260 261 262
Events
- Pope Sixtus II succeeds Pope Stephen I
- Saint Gregory the Illuminator, founder and patron saint of the Armenian Church (approximate date)