How did the hobbits come to settle Shire in The Fellowship of Ring?

The hobbits' arrival in the Shire is not actually explained in The Fellowship of the Ring. Tolkien wrote about the history of the hobbits in other works, particularly *The Hobbit* and *The Adventures of Tom Bombadil*, providing a clearer picture of their arrival.

Here's what we know:

* The Shire is their ancestral home: The Shire is known as the "Old Tookland" in Tolkien's lore. This refers to the fact that the Took family, a prominent hobbit clan, were among the first to settle the area.

* They came from across the Brandywine River: The hobbits originally came from the "Eastfarthing," the land east of the Brandywine River. They crossed the river and settled in the Shire during the "early days" of the Third Age.

* The Shire is a haven: The Shire is a peaceful and isolated area. The hobbits, who are peaceful and agrarian, found it an ideal place to live and thrive. They were not interested in conquering or controlling other lands, content to live in harmony with their environment.

The exact details of their arrival are shrouded in the mists of time. Tolkien doesn't delve deeply into the history of their migration, but he hints at a gradual process over time. The hobbits found a comfortable and suitable home in the Shire, a place they would call home for centuries to come.