Gold is an incredibly fascinating subject. Not only has this shiny, yellow & soft metal been used as a source of wealth since at least 4000 BC. but, gold has been used as currency, jewelry, is a sought-after investment option & is widely used in the production of electronic devices. Gold can´t be manufactured or printed like paper money. Where does gold come from? What is the gold standard? Why did the gold standard collapse? How can Criptoro help you?