Abstract: Memorandum prepared by Edward Hertslet, Foreign Office Librarian, on 23 March 1874 (printed by the Foreign Office 25 March 1874). The document gives a historical overview (from 1506 to 1874) of claims on the islands of Bahrain (referred to as Bahrein throughout), with particular focus on those of the Ottoman Turks and the Persians.Hertslet quotes extensively from his sources, notes on which appear in the left-hand margin throughout.Physical description: Foliation: the sequence commences at the first folio and terminates at the last folio; these numbers are written in pencil, are circled, and are located in the top right corner of the recto side of each folio.Pagination: the booklet also contains an original typed pagination sequence.