Final answer:
Phillip Wells is a fictional character, while Black Elk is a historical figure.
Step-by-step explanation:
The accounts of Phillip Wells and Black Elk are different from each other. Phillip Wells is a fictional character, while Black Elk is a historical figure. The difference between historical figures and fictional characters is that historical figures are real people who have lived in the past and have been documented in historical records, while fictional characters are creations of authors or storytellers.