Richard Fletcher was a rarity among historians. A medievalist, Fletcher published books on Anglo-Saxon England and Moorish and Christian Spain prior to the actual beginnings of the Reconquista in the 11th century (which is usually dated to the 8th century). Another of his impressive scholarly accomplishments was The Barbarian Conversion (1999), which looked at Christian missions into the dark heart of Europe between the fall of the Western Roman Empire and the Reformation, with an eye to happenings in the Eastern Roman Empire, the Middle East, and North Africa.