"0867-03-21" . . "Vikings" . "Battle of York" . . . "Battle of York (867)" . . . . . . "Great Heathen Army" . . "York on 21 March 867" . "York in 867" . "battle of York (867)" . "Battle of York (867)" . . . . . "Kingdom of Northumbria" . . . . "attempt to recapture the city" . . "Anglo-Saxons" . "Northumbria" . "United Kingdom" . "battle at" . . "defeated in battle" . . "Viking victory" . .