In ancient times, the Roman empire introduced silver coins perpetuated by Julius Caesar. The British Empire introduced Gold perpetuated by African SaMusa. The Chinese invented paper money (Fiat currency). The American Empire introduced Forex trading perpetuated by the US Dollar as base currency. The Japanese Satoshi Nakamoto introduced #BTC perpetuated by BlackRock. The D.O.G.E to introduce #Dogecoin as universal digital currency perpetuated by PayPal founder Elon Musk.