Native Americans passed their literature down orally, rather than in books.
Explanation:
Most Native American literature was passed down orally, rather than in writing form.
This is because of cultural reasons: Native American cultures valued oral transmission highly. Besides, they did not develop writing systems until the arrival of Europeans.
For this reason, Native American literature was not considered "real" literature until the late 1800s. Oral literature was not recognized as a valid form of literature until then.
The subject in a sentence is the person, animal or object that performs the main or direct action. The action is the verb of the sentence. In this case, Dad is the subject of the sentence because he is the one who is performing the main action or verb. In the sentence the verb is invited, because it is the action that Dad is performing.