I believe that the adverb phrase is "during the fifteenth century"
1. The Way to Rainy Mountain is the story of the Kiowa Tribe. The Kiowa tribe relied on hunting for sustenance. Their history says that they emerged from a log. Their existence is very spontaneous and natural. The tribe was also decimated by natural disasters. The tribe didn't last long. Thus, the human-nature relationship in this literary piece is that Humans cannot exist without nature. Nature decided the longevity of the tribe. Nature dictated who will survive to this day as with natural selection.
2. In the piece "How the World was Made" there is one central character, Maheo. Maheo is all powerful and was responsible for all creation. The human-nature relationship in this story is that of a creator and his creation. Here, Maheo created nature and decided their fate.
The two literary pieces are opposites when it comes the their relationship with nature. Both present great contrasts into how each tribe regarded nature.
Im assuming youre talking about a famous Frankenstein poem. He does so because he is desperate for a friend. The old man is blind so he feels that the monster is not much dIfferent from any human.
The example is a metaphor. It means that the hills are dark. Hills usually aren’t actually black. It doesn’t use like or as and it doesn’t use a human quality on a non-human thing.