Recently, more and more attention has been paid to money: how much your partner should earn, what your monthly living expenses are, how much a tank costs. However, no one thinks about where money comes from. Who regulates its value? Why are we so eager to have many pieces of paper and see a bigger number on the phone screen? To answer these questions, we need to understand the evolution of money. What steps has it taken, how did the idea of buying goods with pieces of paper come about, and what will replace credit cards?