Decades: 1200s 1210s 1220s 1230s 1240s - 1250s - 1260s 1270s 1280s 1290s 1300s
Years: 1247 1248 1249 1250 1251 - 1252 - 1253 1254 1255 1256 1257
Births
Deaths
... constitutional grounds, it is now relatively easy to find DVD players which bypass the limitations the DVD Consortium sought to impose. The cryptographic keys themselves ...