Charlemagne made Latin the standard written and spoken language. He also played a key role in preserving much of the literary heritage of ancient Rome. Charlemagne was a vert lighthearted man, who enjoyed the company of others. As I mentioned in primary, his favorite was roast meat, which he made people hunt and take the best for him. Since he paid much attention on education, he respected teachers and educators a lot. He treated people who taught him with great conditions. Charlemagne took a serious interest in scholarship, promoting the liberal art at the court, ordering that his children and grandchildren be well-educated, and even studying himself under the tutelage of Paul the Deacon, from whom he learned grammar.His great scholarly failure, as Einhard relates, was his inability to write: when in his old age he began attempts to learn—practicing the formation of letters in his bed during his free time on books and wax tablets he hid under his pillow—"his effort came too late in life and achieved little success", and his ability to read – which Einhard is silent about, and which no contemporary source supports—has also been called into question.
http://www.notablebiographies.com/Ch-Co/Charlemagne.html#b
http://www.timelessmyths.com/arthurian/charlemagne.html#Charlemagne
http://www.sheppardsoftware.com/Europeweb/factfile/Unique-facts-Europe35.htm
Dutton, Paul Edward, Charlemagne's Mustache