This is a huge topic and an interesting one that there is alot of conflicting information on.
No way to put everything into one post without it being a massive wall of text, but there is another historical view out there that hasn't caught much attention. Mainly because mainstream historians have already bought and sold the idea that Troy was in Turkey (the site is now called Troia, in a city renamed Truva by the Turkish government) and this has been taught over the last many years as 'truth'.
However, there has been more 'evidence' that Troy may have very well been in Cornwall. And the "Achaeans" very possibly may have not been Greeks, but Celts that inhabited that part of Greece during that era. And hence part of the reason that it is known as Greek Mythology, since Greeks derived most of their mythology directly handed down from the Celts.
It's wild, I know, but there are some pretty strong indicators that point to this.
- Early Greeks of that time weren't strong enough or unified enough to field a massive army or fleet of that size.
- The terrain around Cornwall matches the accounts that speak of a lush, wet climate (rather than the arid, dry climate of Turkey)
- The number of rivers that ran thru and around Troy, match the number of rivers spoken about in the stories.
- The fact that the Celts needed tin for their bronze, which Cornwall was overly abundant in.
- Massive amounts of Celtic influence all around Cornwall that still exists today proves they were in fact there.
- Accounts of a "Brutus of Troy," a descendant of the Trojan hero "Æneas" and according to the Historia Regum Britanniae say he was the legendary founder and first king of Britain.
- In a borrow found at Trelowarren (which is in Cornwall), there are ancient monuments made of clay and stone, of Hector and Patroclus.
And there is a lot, lot more that I cant remember. Been awhile since Ive read any of the books on that, but it was definitely interesting stuff. They go on to talk about the differences between the seas that were crossed, and the accounts of the return home from Troy and how a return voyage from Cornwall matched the geography so much more, etc, etc. And some interesting archeological findings in various places along the route.
But this is already turning into a tldr kinda thing so Ill shut it down for now.