Angrivarii
The wars began in the last years of the reign of Augustus, first emperor of Rome. Augustus died an old but respected man in the year 14 and was celebrated with much pomp and splendor. He left a document to be read to the senate posthumously, expressly forbidding extension of the empire beyond the Rhine. News of the will was welcomed by the Germans, thinking it gave them a free hand in the region. Germanicus found it necessary to pacify the border, which he did by a combination of scorched earth raids and offers of alliance with Rome - in short, stick and carrot. These raids also kept the army of the lower Rhine distracted from the possibility of mutiny, which had broken out on Augustus's death and only been quelled by concessions and executions.
History of Italy
The traditional account of Roman history, which has come down to us through Livy, Plutarch, Dionysius of Halicarnassus, and others, is that in Rome's first centuries it was ruled by a succession of seven kings. The traditional chronology, as codified by Varro, allots 243 years for their reigns, an average of almost 35 years, which, since the work of Barthold Georg Niebuhr, has been generally discounted by modern scholarship. The Gauls destroyed much of Rome's historical records when they sacked the city after the Battle of the Allia in 390 BCE (Varronian, according to Polybius the battle occurred in 387/6) and what was left was eventually lost to time or theft. With no contemporary records of the kingdom existing, all accounts of the kings must be carefully questioned.