The book "Testament of the Dutch Republic - The Complete Collection (1555-66)" was written by the eminent American historian John Lothrop Motley. In his work, he explores the period of formation of the Dutch Republic in the 16th century, which was important for the history of the Netherlands and Europe as a whole. The author describes in detail political events, the struggle for the independence of the country, the impact of religious conflicts on society and the destructive consequences of the war for power. Motley reveals the complex relationship between Holland and other European states of the time, as well as the development of the political system of the new republic. The author not only factually presents historical events, but also analyzes their causes and consequences, revealing important aspects of the formation of the national identity of the Dutch. This book will be a valuable source for anyone interested in the history of Europe and the specifics of the political development of countries. It will help to better understand the foundations of democracy, liberation struggles and the formation of national states on the European continent.