Decades: 1200s 1210s 1220s 1230s 1240s - 1250s - 1260s 1270s 1280s 1290s 1300s
Years: 1253 1254 1255 1256 1257 - 1258 - 1259 1260 1261 1262 1263
Births
Deaths
... device), hence the 'digital' in DRM. In contrast to existing legal restrictions which copyright status imposes on the owner of a copy of such data, DRM would allow ...