Title in English: Development of common European currency Abstract Main topic of my master thesis was to summarize current development of the European monetary integration. This part is mainly covered by chapter 1, current situation and future expectations mentioned in chapter 4. Some evidence of current integration could be found in the prewar history, but actual development covers the post war period. European Coal and Steel Community (ECSC), European Economic Community (EEC) and European Atomic Energy Community (EAEC or Euratom) were the real beginning of the current European union. European Union was settled by founding treaties of above mentioned institutions. Further milestones were provisions of founding treaties and new treaties of so called primary source of the EU law, of which the final goal was supposed to be the Constitution of the European Union. This constitution was approved in a modified version excluding constitutional symbols and it is called the Lisbon Treaty. This treaty can be considered as the greatest step of the European integration whose integral part is the common currency, euro. The second chapter summarizes theoretical and economic bases of the common currency. The rich theory of optimum currency areas is a dominant theoretical concept in this area. Founder of this theory,...