Oh, heavens. I gave up on English as a major before I got to American Lit in college, so this would be high school. I'm pretty sure we didn't read anything early that wasn't in the Norton Anthology, so it'd pretty much have to be Puritans—Sinners in the Hands of an Angry G-d, say, or something by Cotton Mather.

Well. And this would be, you know, 1989. I see that current editions of the Anthology include earlier texts, many of them English and Spanish explorers, but it starts with native texts. I'm not 100% sure what to make of the description (on the timeline)

Peoples indigenous to the Americas orally perform and transmit a variety of "literary" genres that include, among others, speeches, songs, and stories.

and why, e.g., "literary" is in quotes (or perhaps there at all).