[danielodievich]

Gold has always had value to humans because it is very non-reactive and doesn't corred, and it was easy to smelt and work with since prehistoric times. It is also one of very few metals that is not boring gray/silver. It therefore has always been part of ornamentation and religion. In last century it became useful due to its great conductivity, and so it's used in semiconductors. If you have a gilded book at home, also gold.