"Mighty” reflects how powerful and influential the speeches were to Douglass in a way that “great” would not.
<em>Mighty</em> means possessing power or authority. These elements are not exactly part of the definition of the word <em>great</em>, which simply means large, remarkable, or predominant. With <em>mighty</em>, there is a connotation of significance and impact. Indeed, the narrator tells us that these speeches fascinated him ("unabated interest") and influenced his thinking ("they gave tongue to interesting thoughts of my own soul").
I confim what Meerkat18 said, the answer is "<em>The story relates the war to a family's private history, while the drawing does not</em>."
<span>The Cherokee lived in villages. Each village was home to about 400-500 people. In each village, there were 30-60 homes, a plaza, a town square, and a council house large enough to hold all the villagers during a village meeting. A wall of tall poles tied together surrounded each village. There was a summer village and a winter village.</span>
