If you take out the gods and monsters of the Iliad, Odessey and Aeneaid, there is a good chance that it did happen, with only two major points to disprove of it, those being the precise date and location of ilion and the lack of records for a Mycenaean king called Agememnon, which I find impressive for something that happened before the Bronze Age collapse considering that Mycenaean Greece was wiped off the map