Kung Fu Season 1 Episode 16

If the town in the opening scene was 20 miles from Purgatory (where the nearest white doctor was located), as the bartender states, he would not have told Caine to take the north road to Santa Fe. Instead, Caine would have to travel some 150 miles to the southeast.

Ancient Warrior has a treaty signed by President Andrew Johnson in 1868. The only 1868 treaty with Native Americans was the Treaty of Fort Laramie with the Lakota, a tribe primarily found in the North and South Dakota area, far from where this episode takes place.