<P> According to Tacitus, Calgacus (sometimes Calgacos or Galgacus) was a chieftain of the Caledonian Confederacy who fought the Roman army of Gnaeus Julius Agricola at the Battle of Mons Graupius in northern Scotland in AD 83 or 84 . His name can be interpreted as Celtic * calg - ac - os, "possessing a blade", and is seemingly related to the Gaelic "calgach". Whether the word is a name or a given title is unknown . </P> <P> He was the first Caledonian to be recorded in history . The only historical source that features him is Tacitus' Agricola, which describes him as "the most distinguished for birth and valour among the chieftains". Tacitus wrote a speech which he attributed to Calgacus, saying that Calgacus gave it in advance of the Battle of Mons Graupius . The speech describes the exploitation of Britain by Rome and rouses his troops to fight . </P>

Romans make a desert and call it peace