US dollar exchange in Wroclaw

The official currency of the United States and is one of the most important currencies in the world often used as a global medium of exchange and reserve currency - the US dollar is often used in international transactions. The exchange rate of the US dollar at the exchange office is variable and depends on the economic and political situation and other market factors. The dollar was introduced in 1792 under the Coinage Act and its value was initially based on silver and gold, but in 1971 the US left the gold standard and switched to a fiat money system, which means that the value of the dollar is no longer tied to any physical commodity.