“…Finley, among Greek and Roman historians, had a particularly strict view on the value of oral tradition, derived from his studies of the Homeric world (Palmeira 2007: 132-140), which led him to question, in the end, the very occurrence of the Trojan War. The main lesson here is the inverse relationship between the acuity of the information and the time elapsed or number of generations transmitting the tradition (Finley, Caskey, Kirk and Page 1964;Finley 1974). In order to bring this assertion closer to the history of Brazilian foreign policy, some points are useful: all memory (individual or collective) acts selectively, whether deliberately or not; memory which is transmitted orally often aims not to record data for practical purposes, but rather -which is very important for diplomacy -to increase the prestige or justify the existence of an institution or practice; the resulting oral tradition appears to be presented at random, and often, when it comes to specific events, modify, confuse, transplant and make up details (Finley 1965: 295-300).…”