The initial aim of the Danish archaeological campaigns in Bahrain was to look for settlements contemporary with the "Hundred Thousand Gravemounds". After the first few campaigns it was evident, however, that the island was such a rich archaeological field that investigation of all periods from the earliest flint-using culture to the later Islamic world was called for. Among the Islamic remains was an exceptionally fine collection of Early Islamic pottery and glass recovered from the rubbish which filled up a well at the Barbar site where a temple from around 2000BC was excavated. These remains are published in this volume along with finds from the Islamic settlement at the Qala'a mound, especially the Islamic Fortress.