Before 1970, many countries were on the gold standard. Since that time, floating exchange regimes have dominated

Question:

Before 1970, many countries were on the gold standard. Since that time, floating exchange regimes have dominated the global economy. Select a country which now has a floating or a pegged exchange rate. Prior to its present regime, did this particular country have another regime, or the gold standard? What was the impetus for the change in regime for this country?