The rate at which gold has been exchanged varies with the years. From the period 1821 to 1914, most of the currencies on planet were redeemed into gold and Britain was the first supreme country to adopt this exchange system.
From 1915 to 1979, the gold exchange system has seen several changes and from the year 1980, a new Euro System and The European Exchange Rate Mechanism were introduced into the gold market. After Euro was created and brought into the currency market and the conversion rates were planned against the Euro after 10 years.