Centuries: 2nd century - 3rd century - 4th century
Decades: 200s 210s 220s 230s 240s - 250s - 260s 270s 280s 290s 300s
Years: 246 247 248 249 250 - 251 - 252 253 254 255 256
Births
Deaths
... circular wrist motion with the device. Modern devices come with electronic rev counters and light emitting diodes powered by a little generator embedded in th ...