“On the other hand it seems like the more we find out about events of the Iliad and the Bible, the more accurate they become.”
No expert here, and I don’t know about the Iliad, but it seems like the flood thing really happened. I don’t know if science supports that or not.
It has been so long since I read the Iliad that I can’t recall the details but Schlieman located Troy by using information in the Iliad.
Something about a landmark being visible from Troy. It described how it could only be seen by aligning certain geographic features.
Schlieman followed the instructions and began digging at Hisarlik, and eventually found Troy buried on that hill.
Schliemann decided to look for Troy, having reached the age of 50 and made himself quite wealthy through various businesses (including the slave trade) and erudite through independent study.
He started looking for Troy in an entirely wrong place, a natural hill with a naturally flat top, further inland, and found nothing. He was ready to give up on it and head home but encountered Frank Calvert, who had already dug test trenches at Hissarlik and found stuff.
Have a look at what is called The World History Chart.
Geographical locales are repesented in horizontal bands. Time runs from left to right.
Very early on....way back on the far left margin...you will see a red line that runs vertically through all geographies and civilizations. It is the Great Flood. Nearly all writings from that period in myriad civilizations have a tale of the Great Flood.
Evidence? No. Very interesting? Yes.