The date 1066 is imprinted on the minds of generations of British schoolchildren. This was the year that William, Duke of Normandy, defeated King Harold II at Hastings and set in motion some of the most profound political and social changes in English history.
The Norman Conquest imposed on England an entirely new, French-speaking ruling class, a huge stock of new surnames—Warren, Lewis, Sinclair, Boyle, Churchill, to name a few—and planted the seeds of the modern English language. Yet the most vivid chronicle of this upheaval is not expressed in words, but in colored threads across nearly 230 feet of linen.
What is now known as the Bayeux Tapestry is not, in fact, a tapestry at all, but an embroidery of woolen thread stitched on to cloth. Ten colors create…