Towards the end of the eighth century Beatus, a monk in the monastery of San Martin de Turieno, near present day Santander, compiled a Commentary on the Book of Revelation, or Apocalypse, from the writings dedicated to the topic by such patristic authors as Jerome, Augustine, Ambrose and Irenaeus. Recognition of Beatus of Liébana has survived to our time thanks to his decision to illustrate the sixty-eight sections into which he divided the text of the Book of Revelation. It was a decision that could not easily have been anticipated, for it is not at all clear that Beatus had ever seen an illustrated book, and it is almost certain these illustrations were invented by him or an assistant. The pictures would remain integral to the many – some twenty-six – copies of the Commentary that have survived.
Some have assumed that Beatus’s great work was linked to his campaign against “Adoptionism,” the heretical position on the nature of the Godhead espoused by the bishop of Toledo, but it antedated that campaign. More commonly the book has been linked to the fact that Christian Spain had been conquered and occupied by Muslims. Perhaps some monks, who expected to adopt an allegorical mode for much that they read, identified the assailants of the righteous in the Book of Revelation with their Andalusian neighbors, but the texts harvested by Beatus were all written before Muhammad’s time and can not explicitly target Islam. In fact, the few passages that can be attributed to Beatus himself, make it clear that he chose the Apocalypse, the last book of the Bible and the one that prophesies the future, because of the common belief that the world would end in A.D. 800 and usher in the Last Judgment. The fact that most copies date after the tenth century, when millennial expectations might have been revived, shows that the tradition had a life of its own. The illustrations must have played a major role in survival of the tradition.