The city was subsequently passed under the control of the Roman Empire. In 25 BC, Emperor Augustus raised it to the status of a ''polis'' and made it the capital city of the Roman province of Galatia. Ankara is famous for the ''Monumentum Ancyranum'' (''Temple of Augustus and Rome'') which contains the official record of the ''Acts of Augustus'', known as the ''Res Gestae Divi Augusti'', an inscription cut in marble on the walls of this temple. The ruins of Ancyra still furnish today valuable bas-reliefs, inscriptions and other architectural fragments. Two other Galatian tribal centers, Tavium near Yozgat, and Pessinus (Balhisar) to the west, near Sivrihisar, continued to be reasonably important settlements in the Roman period, but it was Ancyra that grew into a grand metropolis.