It is known that all nations of the world or groups of nations to have their own currency, which vary from one to the other, must be converted.
When our ancestors began to change with each trade, whatever good or product that is accepted in payment of what the other needs he had moved quickly to a system of barter agreement on the relative value of the assets that were the exchange. As the bartering system was introduced more complex ancient civilizations different forms of money that could be used in place of barter. Over time, the currency is used for precious metals like gold or silver. As international trade developed Exchange Holdings of precious metals, in particular, sold the payment of goods. However, since the physical delivery of large quantities of gold, which more and more dangerous by the possibility of theft and piracy, was introduced to another system. To know the exact weight of gold represented a certain amount of its currency allowed the exchange between different nations place without the actual need for gold at any time to take deliver of the transaction and the notes were introduced, have been backed by gold reserves. With the increasing complexity of the nations and the prevalence of international trade agreed to consider a relative of her movements of gold. For many countries in the middle of the twentieth century to the early to the gold standard met, with the amount bought in gold, the amount of money in question.
Notes that were issued and would benefit from additional sales for dealers and exchanged knowing it finally honor was accepted as an international currency. could know whether individual agents from different nations, the amount of a ticket from one country is worth in your local currency. Thus, the possibility arose for the conversion of foreign currency and buy the established markets in which it was possible, a currency to another. The sophistication of these exchange rates may vary depending on its reliability was a nation in comparison with others in order to meet their payment obligations. This led to the beginnings of international currency markets that led to the developed world.
The growth of world economy, especially in the twentieth century, when the banking sector and more complex approach has led to the abandonment of the gold standard, because it would be enough gold reserves to match the amount of money, should the promotion of trade. Today the foreign exchange market to facilitate currency exchange are available 24 hours a day and the relative rate of change between the different currencies can change from minute to minute settings worldwide to various currencies, changes in the function of a number of economic and political factors. There is always a difference in the amount of money is if your buyer or seller so that forex traders are making a profit based on business.