The Turkish interpretation was based on a misread of Resurrection of Ra's al Ghul where Talia described Ra's as having "led a Byzantine life" that resulted in his Wikipedia article assigned him as Ottoman Turkish living in Byzantine Empire era.
That said, since it is written in a story now, even if it's semi out of continuity, if you want to count Truth and Justice as canon...
...It's possible that the nomad tribe on his mother's side originated from Anatolia, since his mother's origin was never revealed, only his father, who is Chinese)
She's always Chinese Arab plus whatever Ra's is, and they're never white. So if DC can't decide, then we help them by not buying the white one and keep rejecting any white washing.
Couldn't he simply be Arab who lived in Anatolia? Its not like Ottoman empire had only one ethnicity.
Truth and Justice isn't canon. The writer said that he has never been able to explore his culture and heritage in his few years writing comics. This gave him a chance to do so and then he thanks the fans for buying the book.
The idea was to showcase young writers of colour. A platform for young up and coming storytellers to reveal their take on Popular characters.
Subsequent installments of Truth & Justice will showcase the heart and spirit of the wide-ranging characters featured across DC’s Multiverse. With an endless array of characters to choose from—heroes, villains, aliens, animals—you name it, we have it!
So that was Anissa's [the writer] take on Damian not Dc's official take
The Arabs didn't invade the Byzantine Empire. So no. If he lived in Anatolia, the writers at DC would have a variety of options to choose from such as Hittite, Greek, Macedonian, Armenian, Turkish, etc. The Ottoman Empire was multiethnic, yes, but ethnic and religious minorities were treated as second-class citizens. That's why the word Ottoman is used for people of Turkish descent up to the year 1922. After 1922, The Republic of Turkey was born and became an ethnostate.
You know, I appreciate people discussing Ra's' actual origins. So many people just go "Middle Eastern", which conflates a lot of different peoples and cultures. I think it's fascinating to look at Ra's' (admittedly inconsistent) backstory and try and figure out where he was actually from and then maybe discuss how his origins/ethnicity/culture would influence Talia and in turn influence Damian.
Most sources say he was born 1430 or around that period.
So mostly 500 ish years old, so he's not that old compared to other DC humanoids. E.G. Vandal Savage.
Since he was a nomad, who knows what his origins entail. I mean, he was certainly young enough to see the Fall of Constantinople at 1453, and surely old then to have join the Spanish Conquistador when colonization occurs.
At what period when he discovered the Lazarus pit, that's something left in mystery. Or I don't know.
This is helpful and makes things less convoluted. I think it's best that Ra's be Arab, since his name is Arabic. It's bad enough that DC can't settle on how to pronounce his name, even though it's a perfectly normal word in a real language.
Now that you put it like that, I kind of really want a "Ra's al Ghul witnesses/influences real historical events" comic. I’d love to see a young Ra’s at the Fall of Constantinople.
Oh that's nice, willing to bet that he would be Janissary, it would also add to the fact the Janissary were educated and trained. Wasn't he a slave at one point? yeah that would fit.
Damian's reaction to it would be nice, Grand pa telling his Grand son his days while he was young.
Ra's: So I and my Janissary companions forwarded to Constantinople. The last of Romans died bravely, Constantine the 11th, I saw it with my own eyes, and fought him.
Damian: Mother never mentioned this, you never mentioned this besides talking on how long you lived. What happened next?
Ra's: Afterwards, I had enough of being the Sultan's bodyguard, and escaped to the Italy to see the Renaissance.
Damian: The part you found the Lazarus pit?
Ra's: We'll get there, grand son.
It's bizarre that Ra's al Ghul of all people in the Robin series gave us a wholesome Grand-son to Grand-father moments, compared to Thomas Wayne.