Although the stages in the history of the Orthodox Christian Civil¬ization can be identified and dated, the scanty materials about educa¬tion do not permit a comparable division in the development thereof. There were scholars in plenty in the society at many different stages, but education is rarely described either by them or by the historians, and the allusions to curricula, methods, and personnel are for the most part vague and ambiguous. There is little direct evidence about schools; what indirect evidence there is must be derived almost en¬tirely from biographies of a relatively few individuals