Which literary device is used in this sentence The east edge of the earth was easily seen?

The sentence "The east edge of the earth was easily seen" uses the literary device of personification.

Here's why:

* Personification is giving human qualities or characteristics to inanimate objects or abstract ideas.

* In this sentence, the Earth is given the human quality of having an "edge", which is something that only physical objects can have.

This is a poetic way of describing the horizon, suggesting that the Earth is a finite object with a clear boundary.