The article reviews the Polish translation and the English version of the book by Petr Vorel, From the Silver Czech Tolar to a Worldwide Dollar. The Birth of the Dollar and its Journey of Monetary Circulation in Europe and the World from the 16th to the 20th Century, Columbia University Press 2013. A short summary of the genealogy of the dollar leads to the second part of the article, in which the issue is discussed whether a common monetary system existed in early modern Europe. This article focuses on the interdependence between big silver coins minted primarily in the Holy Roman Empire and the Polish-Lithuanian Union and used in international trade.