The purpose of this book is to put the achievements of Agricolas navy, apparently understated by Tacitus, in their true perspective, with the proposition that the Roman fleet reached the furthest limit of the known world, Thule, or Mainland, Shetland, where it located a convenient anchorage, possibly in Lerwick harbour. To support this theory, firstly the identification of Thule as Shetland during the classical period from the time of Pytheas onwards is investigated through collation of geographical sources, secondly the earliest manuscript of Tacitus Agricola comes under closer scrutiny at...