About the Source
Watched by a group of students, a lady uses a compass to measure distances on a diagram. In her hand she holds a set square, an implement for testing or drawing right angles. It is unusual to see women represented as teachers, particularly when the students appear to be monks.
This is an illuminated intial from a French medieval manuscript, a Latin translation of the Euclid's 'Elements' ( a Greek philosophical work) by Adelard of Bath. It was produced in Paris between 1309 and 1316.



