 "Achilles" is the first known example of the stable solution of the three-body problem worked out by French mathematician Joseph Lagrange in 1772, after whom the minor planet 1006 Lagrangea is named.After the discovery of other asteroids with similar orbital characteristics, which were also named after heroes from the Trojan War "(see below)", the term "Trojan asteroids" or "Jupiter trojans" became commonly used.In addition, a rule was established that the point was the "Greek camp", whereas the point was the "Trojan camp", though not before each camp had acquired a "spy" ("Hektor" in the Greek camp and "Patroclus" in the Trojan camp).