the vikings wanted to keep iceland to themselves, it was lush, fertile and inhabitable. they named the island iceland to keep others away from it and uninterested, and found greenland, an icy frozen tundra-like island. they named it greenland, luring others to the wrong island where no crops grew, cleverly hiding their own secret farmable island
A horse. My ancestors were farmers, thus a horse would be the most useful to me. It can help you care for your crops, and allow you to travel to town to purchase and sell products.