Book excerpt: Books 31 to 40 of Livy's history chart Rome's emergence as an imperial nation and the Romans tempestuous involvement with Greece, Macedonia and the near East in the opening decades of the second century BC; they are our most important source for Graeco-Roman relations in that century. Livy's dramatic narrative includes the Roman campaigns in Spain and against the Gallic tribes of Northern Italy; the flight of Hannibal from Carthage and his death in the East; the debate on the Oppian law; and the Bacchanalian Episode.