The book "History of the Expedition under the Command of Captains Lewis and Clark. Volume 1. To the Sources of the Missouri River, Further Through the Rocky Mountains, and Down the Columbia River to the Pacific Ocean. Made During the Years 1804-5-6" is a fascinating journey into the past, which tells about the brave expedition of Lewis and Clark across the American continent in the 19th century. The authors of this book, Meriwether Lewis and William Clark, describe in detail their unique discoveries, meetings with local tribes and extraordinary adventures during their journey. The first part of this exciting work reveals to the reader the incredible events and impressions of the expedition, which forever changed the map of the world and our understanding of nature.