There are other form of digital currency exist before the cryptocurrency and bitcoin come, others called them e-currency, cyber-money, virtual currency, digital coin and most of them was developed by the Westerners but it does not intended for the anti-banking system until bitcoin introduced the cryptocurrency where you can have a reward thru cryptographic hash calculation and brute force computational problem. Bitcoin was documented by Satoshi Nakamoto but it does not mean that he made it only by himself rather it is made by a group of radical thinkers on how to evade the banking systems and i believe that the Western Elites initiates this project because eiltes are in favor of banking system as the milking cow of their wealth.