books.google.bg - The Ottoman Empire invaded Bulgaria in 1393, to remain in power there until 1878. During that time, scribes preserved Bulgarian literary heritage by copying manuscripts. They also recorded in the margins of the manuscripts their thoughts and perceptions, formal transactions of the church, and interactions...http://books.google.bg/books/about/Margins_and_Marginality_Marginalia_and_C.html?hl=bg&id=1ULXk_ofPSgC&utm_source=gb-gplus-shareMargins and Marginality: Marginalia and Colophons in South Slavic Manuscripts During the Ottoman Period, 1393--1878
