Tacitus 117:253–254, The Annals, Bk XIII, Ch 55. Events of AD 54–58. The Germans under Arminius had wiped out 3 Roman legions under Varus at the Battle of the Teutoburg Forest. The Ampsivarii had not supported the German cause and had been ostracised as a result. Many years later, c. AD 58, the Chauci then took the opportunity to expel them and occupy their land at the mouth of the River Ems. Tacitus, Publius Cornelius (117), Church, Alfred John; Brodribb, William Jackson (eds.), Annals of Tacitus (translated into English), London: MacMillan and Co. (published 1895)
Pliny the Elder 79b:339, Natural History, Bk XVI, Ch I: Countries that have no trees. Pliny also notes that the Chauci lived between the Rivers Ems and Elbe. Pliny the Elder (1892) [79], Bostock, John; Riley, H. T. (eds.), The Natural History of Pliny, vol. III, London: George Bell and Sons
Tacitus 117:400, The Annals, Bk XVI, Ch 17. Events of 65–66 (Rome and Parthia—Campaigns of Corbulo in the East). Tacitus makes the parenthetical comment that Corbulo had driven the Chauci out of the provinces of Lower Germany which they had invaded in AD 47. Tacitus, Publius Cornelius (117), Church, Alfred John; Brodribb, William Jackson (eds.), Annals of Tacitus (translated into English), London: MacMillan and Co. (published 1895)
Tacitus 105:222, The Histories, Bk V, Ch 19. A footnote makes reference to "Cp IV.79". Tacitus, Publius Cornelius (105), The Histories, vol. II, translated by Fyfe, W. Hamilton, Oxford: Clarendon Press (published 1912)
