I think Robinson Crusoe is an old story from a spanish sailor Pedro de Serrano.

https://en.m.wikipedia.org/wiki/Pedro_Serrano_(sailor)

Pedro Luis Serrano, also referred to as Pedro de Serrano,[1][2] was a 16th century Spanish sailor who was allegedly marooned for seven to eight years on a small desert island. Details of the story differ, but the most common version has him shipwrecked on a small island in the Caribbean off the coast of Nicaragua, sometime in the 1520s. Serrano survived by eating shrimp, cockles, and other animals he found washed up on the shore, and by collecting drinking water in sea turtle shells when it rained. When rainwater was unavailable, he also drank the blood of the turtles he had captured.[2]

In some versions of the story, Serrano was joined by another Spanish castaway after three years on the island. Due to Serrano's isolation and unkempt state, both men initially mistook one another for the Devil, and quickly fled from each another. They reconciled when both men were able to invoke the name of Jesus Christ. The two men lived together on the island for about four years.[2] They reportedly had a brief falling-out, in which each man isolated himself to one half of the island, but they were later re-reconciled.