How did foreign 
              currency exchange come about? The foreign exchange market that the 
              retail currency trader knows today, has been shaped by a long history 
              of global historical events. Consequently, studying the history 
              of foreign currency exchange can be a lengthy and time consuming 
              process. Although important for cultural and historical reasons, 
              a detailed study of specific historical events like the Bretton 
              Woods accord and the Smithsonian Agreement is not very useful for 
              the modern foreign currency exchange trader. It is more important 
              for a trader that is considering foreign currencies, to understand 
              the logic behind foreign exchange as an efficient medium of exchange 
              for goods and service.
            
      The barter system 
              was originally used by our ancestors as a means of exchange. Bartering 
              was inefficient as an exchange mechanism because it required that 
              a lot of time be spent in negotiation to strike a deal. Also, much 
              time was needed to search for the goods required for bartering. 
              The barter exchange system was eventually enhanced by the public 
              acceptance of standardized sizes and grades of metals like gold, 
              silver and bronze for the exchange of merchandise. This metal currency 
              for exchange had many advantages including durability and storage. 
              During the middle ages, a variety of paper IOU's started gaining 
              popularity as a medium of exchange.
            
Throughout the 
              years, people began to realize that carrying around paper currency 
              was a lot more advantageous than carrying heavy bags of precious 
              metals. Consequently, stable governments eventually adopted paper 
              currency and backed its value with gold reserves. This led to the 
              birth of the gold standard. On July of 1944, the Bretton Woods Accord 
              pegged the US Dollar to gold at a price of $35 per ounce. The Bretton 
              Woods Accord also fixed other foreign currencies to the dollar. 
              It lasted until 1971, when US president Nixon let the dollar "float" 
              freely against other foreign currencies and suspended the conversion 
              to gold.
     
            As we fast forward 
              to the present, the foreign currency exchange market has grown into 
              the largest financial market in the world, with an aggregate daily 
              volume of 1.5 trillion dollars or greater. Even though foreign exchange 
              has traditionally been an institutional (Inter-Bank) market, the 
              growth of the Internet has propelled online currency trading among 
              private individuals to the stratosphere, widening the retail currency 
              trading market considerably. 
