In the Black Hills mountain range in South Dakota, a huge bas-relief has been carved with sculptural portraits of four US presidents, whom Americans consider the most outstanding in their history: George Washington, Thomas Jefferson, Theodore Roosevelt and Abraham Lincoln. Theodore Roosevelt was the 26th President of the United States of America. Suffering from serious illnesses since childhood, he managed to become a physically strong person through persistent exercises and participated in dangerous journeys and even in the war. Under Roosevelt, the country entered the international arena, declared its foreign policy interests within the framework of the "Monroe doctrine," and in domestic policy, the first step was taken to limit the activities of monopolies (the "big cudgel" doctrine) and introduce certain social guarantees for the population. Not everyone was satisfied with this policy: Roosevelt survived two assassination attempts, as a result of one of them he was seriously injured, but did not change his principles. The book by the famous Russian historian-Americanist A. I. Utkin traces the biography of T. Roosevelt against the background of the events of the late XIX ― early XX centuries.