The latter portion of the 14th century also saw not only the consolidation of English as a written language, taking over from French or Latin in certain areas, but a large shift from primarily theological or religious subject matter to also include that of a more secular nature. Vernacular book production saw a growth in the number of books being copied, both secular and religious. Thus, the latter portion of the 14th century can be seen as one of the most significant periods in the history of the English language.[4]