Charlemagne’s most significant contribution to the Carolingian Renaissance was the revival of learning, especially among the clergy, most of whom were barely literate. Before the surge of education following the Admonitio Generalis and subsequent Carolingian Renaissance, it was difficult for the Frankish people to connect with Christianity and the church. Peasant life was very hard; the people were illiterate and Latin, the language of the church, was not their native language, making Christianity and the Bible difficult to access. Nobles also were largely uneducated and uncultured, with few devoted Christians among them. Only the clergy were consistent in having some level of education, and thus they had the best understanding and exposure to the Bible and the full extent of Christianity. The schools, which the Admonitio ordered established by the monasteries and cathedrals, began a tradition of higher learning in Carolingian Europe, leading the revival known as the Carolingian Renaissance. The fulfillment of Admonitio Generalis meant that the study of language, rhetoric and grammar in these institutions, as well as the standardizing of writing scripture and Latin, was undertaken in order to make religious texts and books accessible to the clergy, as well as their correction and standardization. However this strengthened all forms of Carolingian literature, and book production, as well as developments in law, historical writing, and uses of poetry all flourished in these schools. In fact, the capitularies themselves, and the level of language they use, are examples of the increasing importance of writing within the Frankish kingdom. As well as language, the Admonitio Generalis ordered other arts such as numbers and arithmetic, ratios, taxes, measure, architecture, geometry, and astrology to be taught, leading to developments in each field and their application within society. Charlemagne pushed for an educated clergy who could help lead reform, because it was his belief that the study of arts would aid them in understanding sacred texts, which they could then pass on to their followers. During the Carolingian Renaissance, Charlemagne unified religious practices and culture within his realm, creating a Christian kingdom, and ultimately unifying his empire.