<P> Events - sponsorship in sport or in the arts may involve (for example) silver, gold and / or platinum sponsors . </P> <P> Fantasy role playing games often have a hierarchy of materials, following the relative strengths of pre-modern metals, bronze, iron and steel, for example, at the lower end, and moving up through fantastic or legendary materials such as mithril and adamant . </P> <P> The "golden age" metaphor is extended to a number of disciplines, for example the golden age of science fiction . </P>

Bronze silver gold platinum diamond what's next