The Latin script, introduced by Christian missionaries, began to replace the Anglo-Saxon futhorc from about the 7th century, although the two continued to be used alongside each other for some time. Futhorc influenced the new Latin-based English alphabet by giving it letters "thorn" (Þ þ) and "wynn" (Ƿ ƿ). The letter "eth" (Ð ð) was later devised as a rewriting of the letter "dee" (D d), and finally "yogh" ( ) was created by Norman scribes from the insular "g" in Old English and Irish, and used alongside their Carolingian "g".