Dear Teacher: Please, please let your students read The Book of Boy as history! Yes, I know the story has fantasy elements—marvelous, fantastical fantasy that will lure them in and wrap them in a wonderful tale. But most of the book is fact. Cold, documented, years-of-research fact. Your students will learn more about medieval life with The Book of Boy than a shelf of encyclopedias.

For example: travel. I now know as much about medieval travel as anyone in my area code. I know whether and how bridges existed, the best routes from France to Rome, the nature and security of sea travel, the (dis)comforts of inns, and the condition of highways. Reading between the lines of
The Book of Boy, a student will find out that roads were generally terrible so most people traveled by foot because horses were expensive and wheeled vehicles couldn’t manage the mud. Travelers often slept on the floor; if you managed to find an inn with a mattress, you’d have to share it with your companions or even strangers, and the sheets certainly wouldn’t be clean.
Clothing, currency, pilgrimage, trade, hygiene, the plague . . . all these are spot-on. There really was an earthquake in Rome in 1349 that destroyed most of the churches. The popes really did flee (or were captured, depending on whether you’re French or Italian) to Avignon, where they reigned for almost a century in an enormous castle with secret compartments in the floor. Perhaps a third of the population died of the Black Death, but at the time they called it only “pestilence.” The survivors stumbled onward, marrying like mad (often outside their station, like Sir Jacques and Cook in The Book of Boy) in an attempt to return to normalcy, or at least an attempt to fake normalcy.
What did I make up? Well, the characters of course, though professional relic thieves existed. I took liberties describing the ruined churches of Rome because we don’t have actual descriptions. We know St. John Lateran burned in 1308, was rebuilt in the next decades, then collapsed in the 1349 earthquake. I extrapolate the char marks.
My biggest falsehood relates to the relics of Saint Peter. Secundus sets out to collect rib, tooth, thumb, shin . . . but in reality these relics never left Rome. “You are the rock upon which I shall build my church,” Jesus tells Peter in the Bible, and Christians took that seriously. They built a magnificent cathedral over Peter’s tomb, which they sealed beneath the floor. Yes, the skull was moved to the nearby cathedral of St. John Lateran, and yes, medieval pilgrims believed that half Peter’s body rested at the nearby cathedral of St. Paul. Thus all the remains of Saint Peter remained in the city, the very foundation of the Church.
Sources:
Thomas J. Craughwell, St. Peter’s Bones: How the Relics of the First Pope were Lost and Found . . . and Then Lost and Found Again, 2013.
Patrick Geary, Sacra Furta: Theft of Relics in the Middle Ages, 1978.
Paul Hetheringrton, Medieval Rome: A Portrait of the City and its Life, 1994.
Paul B. Newman, Travel and Trade in the Middle Ages, 2011.
Jeffry L. Singman, Daily Life in Medieval Europe, 1999.