Bartholomeus Anglicus, or Bartholomew the Englishman in English, was an early 13th-century scholastic scholar of Paris, and a Franciscan monk. He was the author of the compendium De proprietatibus rerum or “On the Properties of Things”. The work was intended for the use of students and the general public. Compiled in 1240, it was a sort of pre-encyclopedia and one of the most popular books in medieval times. This petite unicorn can be seen within its pages.