The author’s purpose in this paragraph was to entertain readers with a story about

The author’s purpose in this paragraph was to entertain readers with a story about how code talkers received medals for their service during wartime.
inform readers that the code talkers were recognized by the US government for their critical work during wartime.
educate readers about the history of US presidents and holidays created to honor groups like the code talkers.
persuade readers that they should learn to create code so they can be recognized by the US government.