The Euro, which is the official currency of the Eurozone, is denoted by the symbol €. This currency symbol is derived from the Greek letter epsilon (ε) with two parallel horizontal lines added to represent stability and strength. The Euro has been in circulation since January 1999 and is currently used by 19 out of 27 European Union member states. It is the second largest reserve currency in the world, after the US dollar, and is widely traded in the foreign exchange market. Understanding the symbol and its significance is key to comprehending the complexities of global finance.