1004 - Thetford was plundered

Dark Lewisham chess pieces
England
Sweyn Forkbeard s viking army looted East Anglia and Thetford was plundered and Norwich was destroyed.
Island of Man
Ragnall was king 1004-1005.
the western isles' independence from Orkney had been re-asserted under Ragnal mac Gofraid, who died in that year.After Ragnall's death Sigurd became ruler