Book 19
B. C. 191: P. Cornelius Scipio Nasica, M. Acilius Glabrio, Coss. The Romans declare war with Antiochus. Manius Acilius is selected to go to Greece, where he takes over the army of Baebius, and after taking many towns in Thessaly meets and defeats Antiochus at Thermopylae; where the Aetolian league did after all little service to the king, who retires to Ephesus.
See Livy, 34, 43—36, 21. See also Plutarch, Philopoemen, and Flamininus; Appian, Syriacae, 6—21.