Searching through the annals of North American history uncovers the diverse and astounding contributions by the Natives of the Americas who formed the world we know today. In the Shadow of Our Ancestors explores the rich history of the indigenous peoples of North America and leaves us in awe of their stunning achievements and inventions: The Great Law of Peace - The ideals, words and symbols of the Iroquois Confederacy inspired the governments of the New World to form democracies that recognized, in their constitutions, the rights of all people. Potatoes - The lowly potato, a staple food of Natives for almost 15,000 years, was unknown outside the Americas until Europeans arrived; now, with almost 4000 varieties, it is the fourth most-consumed agricultural product in the world. Sacagawea - The settlement of western North America was inspired and influenced by the results of the Lewis and Clark expedition in the early 1800s, with the journey's success made possible because of a Native woman named Sacagawea, whose presence paved the way for the explorers to be seen as a peaceful party.