600-1500 909-988 anglo-saxon anglo-saxons antiquities approximately540-604 approximately760-821 authors bede biography calendar christianity christiansaints churchhistory civilization contributionsinbiblicalcriticism criticism dunstan earlyworksto1800 england english etc etcbede geography history historyofdoctrines influencegregory intellectuallife interpretation latin(medievalandmodern) middleages miracles monasticismandreligiousorders oldenglish religiousaspects theodulf time timemeasurements viewsonmiraclesbede