Gold is arguably the only precious metal which exercises a multi-dimensional impact on global economy. The most obvious use of gold is Jewellery. This is the form in which gold becomes a significant part of household economy. However, with time, its role as an investment asset has steadily gained prominence. This has been due to the stabilizing effect gold has exhibited on investment portfolios across the globe in times of financial and political crises. It also finds use in industries. Historically gold has been an integral part of economy. 'Gold standard' was the international monetary system which prevailed for over two centuries. Even though it does not exist anymore, gold continues to play a significant monetary function in the form of reserves held by Central Banks. Last but not the least, gold mining industry has been significant generator of employment .
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Please refer to the links below.
http://www.925-1000.com/silverhistory.html
http://www.lifesilver.com/history.htm