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
Coinage in Anglo-Saxon England a province of the Roman Empire, the production of coinage effectively came to an end and a non-monetary economy developed. During the 5th century, Anglo-Saxon tribal groups from continental Europe migrated to central and southern Britain, introducing their own language, polytheistic religion and culture. Although gold coins from continental Europe were traded into Anglo-Saxon England, they were initially used for decorative purposes, only beginning to be used as money in the latter part of the 6th century. It was around this time that the first Anglo-Saxon coins were produced, although sustained production would not appear until the 630s. These were