Iliad - thought on argos hero

Here is the first thought concerning the Iliad, if the Argos is the coven of the arc and heroes of all times appear as they do in the iliad including at troy, could this tale be of differing ages that culminate in the works of the Greeks leading to Ulysses time?  If so Achilles appears in the beginning in the tale  concerning his history and as a heroes as Hercules is at the battle of troy, which heroes were at the first one versys are parts of a larger tale of wars of succession and change in the Trojan empire?  Each piece of dueferent heroes and battles all concerning acivil was and revolutions as is with the American civil war that is made up of several battles representing several wars fought between the north which includes Canada and the us  south ( all fomer thereof)
Keep this in mid as we realize more of the real history and events that led to the Trojan war described as starting in the way the tale of Achilles and Agamemnon thusfarsaid  tells.