CURRENCIES MEASURED IN TERMS OF DOLLAR

Currencies always trade in pairs because the value of each currency is measured against that of another currency, yeilding a rate of exchange for the currency pair. The primary reason that most currencies trade in the forex market against the U.S. Dollar goes back to Bretton Woods agreement made near the end of the Second World War.After that devastating global war, the United States was the only major country which emerged relatively strong economically after the costly conflict compared to the other significant nations of the world.Despite proposals for the creation of a neutral global reserve currency called the bancor, pressures prevailed for the U.S. Dollar to be chosen as the world's reserve currency at the Bretton Woods conference held in New Hampshire in 1944, just before the end of the war....

 These include the following pairs ordered by trading volume:

E.U.'s Euro versus the U.S. Dollar: EUR/USD

U.S. Dollar versus the Japanese Yen: USD/JPY

U.K.'s Pound Sterling versus the U.S. Dollar: GBP/USD

U.S. Dollar versus the Swiss Franc: USD/CHF

Australian Dollar versus the U.S. Dollar: AUD/USD

U.S. Dollar versus the Canadian Dollar: USD/CAD

New Zealand Dollar versus the U.S. Dollar: NZD/USD