Have you run a historical (including mythic history) game in D&D? If so, what era and location did you choose? How to you integrate D&D's particulars? DID you swap out real world cultures for D&D races, or not use D&D races, or something else? How did it go?
I have made a few attempts but the most ambitious was Post-Roman Britain using 3.5/Pathfinder. I didn't necessarily direct swap cultures for races but generally speaking Dwarves were from the Wales region, Elves were from Ireland, halflings and humans were "local" and orcs and goblins had been pushed back to the other side of Hadrian's Wall (but I avoided saying "Picts are orcs"). The invading Saxons were replaced by hobgoblins, but in retrospect I should have made them the elves. It worked pretty well for a while but as happened a lot in that time it eventually collapsed under the weight of the system.
I have made a few attempts but the most ambitious was Post-Roman Britain using 3.5/Pathfinder. I didn't necessarily direct swap cultures for races but generally speaking Dwarves were from the Wales region, Elves were from Ireland, halflings and humans were "local" and orcs and goblins had been pushed back to the other side of Hadrian's Wall (but I avoided saying "Picts are orcs"). The invading Saxons were replaced by hobgoblins, but in retrospect I should have made them the elves. It worked pretty well for a while but as happened a lot in that time it eventually collapsed under the weight of the system.