Aelfric was an Anglo-Saxon monk and scholar who lived during the late 10th and early 11th centuries. He is best known for his writings, which include sermons and educational texts aimed at both clergy and laypeople. Aelfric's works were significant in promoting the use of the Old English language and making religious teachings more accessible to the general population. His most notable contributions include the Aelfric's Sermons and the Grammar, which helped standardize the English language during a time of linguistic transition. Aelfric's influence extended beyond his lifetime, as his writings were widely copied and studied, playing a crucial role in the development of English literature and education.