Slovakia in the Roman era
The reign of Augustus (27 BC - 14 AD) began a long period known as the Pax Romana, or Roman peace. Despite continuous wars on the frontiers, and one year-long civil war over the imperial succession, the Mediterranean world remained at peace for more than two centuries. Augustus enlarged the empire dramatically, annexing Egypt, Dalmatia, Pannonia, and Raetia, expanded possessions in Africa, and completed the conquest of Hispania.
By the end of his reign, the armies of Augustus had conquered the Alpine regions of Raetia and Noricum (modern Switzerland, Bavaria, Austria, Slovenia), Illyricum and Pannonia (modern Albania, Croatia, Hungary, Serbia, etc.).
Augustus
By 23 BC, some of the un-Republican implications were becoming apparent concerning the settlement of 27 BC. Augustus' retention of an annual consulate drew attention to his "de facto" dominance over the Roman political system, and cut in half the opportunities for others to achieve what was still nominally the preeminent position in the Roman state. Further, he was causing political problems by desiring to have his nephew Marcus Claudius Marcellus follow in his footsteps and eventually assume the Principate in his turn, alienating his three greatest supporters – Agrippa, Maecenas, and Livia. He appointed noted Republican Calpurnius Piso as co-consul in 23 BC, after his choice Aulus Terentius Varro Murena (who had fought against Julius Caesar and supported Cassius and Brutus) was executed in consequence of his involvement in the Marcus Primus affair.