From everything I could find it was Carl himself, But if you heard the poem online somewhere it could've been anywhere. Where did you hear it?
Answer:
Passover
Explanation:
In Frederick Douglass' speech, he makes a reference to Passover. Jewish people celebrate Passover as a commemoration of their people being freed. This is a biblical reference that serves to emphasize Douglass' understanding of the importance of July 4th to his audience, which they can relate to.
<span>D. Orangeville, Mack. Comprehensive Studies: Palm Trees and Other Mediterranean
Plants. Chicago: Rectangle Press, 2012. Print.
E. Inkletter, Christine. "The Wonderful Mediterranean Palm Tree." Overseas
Science 20.2 (2012): 13–28. Print.
You can usually tell if a source is reputable by its publisher.
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