Walnuts have a rich history dating back thousands of years. They are the oldest tree food known to man dating back to 7000 B.C. The Romans called walnuts Juglans regia, "Jupiter's royal acorn." Early history indicates that English walnuts came from ancient Persia, where they were reserved for royalty. Thus, the walnut is often known as the "Persian Walnut." Walnuts were traded along the Silk Road route between Asia and the Middle East and sea trade in Walnuts saw their popularity spread around the world. It was primarily English merchant marines transporting walnuts around the world so they became known as "English Walnuts." Even though England, in fact, never grew walnuts commercially. Today the global nut trade continues with the “Australian Walnut” highly regarded for their taste and quality.