Anglo-Norman language general use of the word "acre" for land measurement in Normandy until metrication in the 19th century, but these words are probably linguistic traces of Saxon or Anglo-Scandinavian settlements between the 4th and the 10th centuries in Normandy. Otherwise the direct influence of English in mainland Norman (such as "smogler" - to smuggle) is from direct contact in later centuries with English, rather than Anglo-Norman. When the Normans invaded England, Anglo-Saxon literature had reached a very high level of development. The important Benedictine monasteries both wrote chronicles and guarded other works in Old English. However, with the arrival of the
Anglo-Saxon settlement of Britain signs of the Anglo-Saxon settlement, and the people, assumes that the words Angles, Saxons or Anglo-Saxon have the same meaning in all the sources. Assigning ethnic labels such as "Anglo-Saxon" is fraught with difficulties and the term itself only began to be used in the 8th century to distinguish "Germanic" groups in Britain from those on the continent (Old Saxony in present-day Northern Germany). The Chronica Gallica of 452 records for the year 441: "The British provinces, which to this time had suffered various defeats and misfortunes, are reduced to Saxon rule." The Chronicle was written some distance from Britain.