An Ottoman Protocol Register containing ceremonies from 1736 to 1808: BEO Sadaret Defterleri 350 in Prime Ministry Ottoman State Archives, Istanbul The BEO 350 protocol register edited here is part of the Sublime Porte Archives series (Babıali Evrak Odası) of the Prime Ministry Ottoman State Archives (Başbakanlık Osmanlı Devlet Arşivi) in Istanbul. The register covers a number of ceremonies held on various occasions from 1736 to 1808 and primarily concerned with accession ceremonies, funerals and, most of all, the reception of envoys. This edition of the BEO 350 is accompanied by an introduction, a synoptic list of ceremonies, appendices, and indexes. The introduction examines various aspects of Ottoman ceremonies, particularly those of a diplomatic nature, and includes a section on the gifts and offerings exchanged by the Ottoman administration and foreign envoys.