After searching for several days, Leonard Ethan collected enough information.
This information mainly came from two epic poems, one of which was one of the earliest Nordic heroic legends, "Saga of Erik the Red," and the other was "Saga of the Greenlanders."
Both poems described a person sailing west from Greenland Island to find a rich new homeland and then returning home in glory.
Of course, there are a lot of adaptations in this type of epic poem. The difference between them is as big as the gap between "The Great Tang Records on the Western Regions" and "Journey to the West."
However, after comparing and analyzing multiple versions of the poems, Leonard realized that even without considering the information from his past life, these data could significantly reduce the search scope.
For example, one version mentioned that the nearby terrain of that territory was flat, making it easy to drag boats ashore for maintenance, but some reefs in the bay needed to be avoided.