Decades: 1210s 1220s 1230s 1240s 1250s - 1260s - 1270s 1280s 1290s 1300s 1310s
Years: 1261 1262 1263 1264 1265 - 1266 - 1267 1268 1269 1270 1271
Births
Deaths
... Web site at www.cl.cam.ac.uk/~rja14/tcpa-faq.html/ for a clear discussion of two prominent proposals. Examples of existing "digital rights management" and "copy ...