Cross-referencing Homer's writings with archaeological findings from the Mycenaean civilization, we find several points of interest. Homer's 'Iliad' and 'Odyssey' are believed to reflect elements of the Mycenaean world, which existed from approximately 1600 to 1100 BCE. Archaeological evidence supports the existence of Mycenaean palaces, such as those at Mycenae and Pylos, which align with descriptions of fortified citadels in Homer's works. For instance, the Lion Gate at Mycenae, dating to around 1250 BCE, could be linked to the 'Cyclopean walls' mentioned by Homer.
Regarding the claim of a more advanced preceding civilization, there is no definitive archaeological evidence to support this hypothesis. The Mycenaeans are considered a Bronze Age civilization with advancements in metallurgy, trade, and warfare, but there is no evidence of technologies or societal structures significantly more advanced than what is expected for their time period. However, the Linear B script, found in Mycenaean sites, indicates a level of bureaucratic organization and literacy, which aligns with Homer's depiction of a sophisticated society.
As for 'disappeared' or ignored findings, some scholars argue that the destruction layers found at various Mycenaean sites around 1200 BCE, traditionally attributed to the 'Sea Peoples' or internal strife, might indicate a more complex scenario. The work of archaeologist Manfred Korfmann at Troy suggests that the city's size and importance may have been underestimated, potentially aligning with Homer's descriptions more closely than previously thought. However, these findings are not 'disappeared' but rather subject to ongoing debate and re-evaluation.
In conclusion, while there is no direct evidence supporting a more advanced civilization before the Mycenaeans, the archaeological record does provide a rich context for understanding the world described by Homer. Further exploration into less-examined sites or re-evaluation of existing data could potentially uncover new insights, but as of now, the evidence supports the Mycenaeans as a sophisticated civilization within the expected parameters of the Bronze Age.