An economic and monetary union is a type of trade bloc which is composed of an economic union (common market and customs union) with a monetary union. It is to be distinguished from a mere monetary union (e.g. the Latin Monetary Union in the 19th century), which does not involve a common market. This is the sixth stage of economic integration. EMU is established through a currency-related trade pact. An intermediate step between pure EMU and a complete economic integration is the fiscal union.