Answer:
'Coming of Age in Dawnland' by Charles C. Mann primarily aims to reveal the misconceptions that society bears towards the Native Americans and consider them savage. In lines 1-13, the author adopts a comparative tone where he compares the Indians to a cluster of modern Americans to offer an image of the times which eventually led to the modern world. It helps the author to persuade the readers that the early European settlers were as similar to the Native Americans and not savage or barbaric as they are thought to be. Thus, the words that can be used to compare the tone of the work could be persuasive and proclaiming as he preaches that the native Americans are not that uncultured or primitive.