STF268284 The beginning of the first Dacian War, 101 AD, detail from Trajan\'s Column, erected in 113 AD (limestone) by Roman, (2nd century AD); Forum of Trajan, Rome, Italy; (add.info.: Trajansaeule; dedicated to Emperor Trajan (52-117 AD) by Hadrian in honour of his victories over the Dacians; Roman soldiers crossing the river Donau by making a bridge out of boats; Flussgott;); Bildarchiv Steffens; Ralph Rainer Steffens / Bildarchiv Steffens ; out of copyright.