In recent years, the term bitcoin has become popular and made headlines around the world for various reasons: its rapid appreciation or depreciation, stories of people who became millionaires with bitcoin, and cases of those who lost everything.
Bitcoin is the first decentralized currency in the world. This means that, in addition to not being regulated by governments, banks, or companies, it is possible to buy, send, and receive bitcoins without any intermediaries, such as banks or credit card issuers.
Furthermore, it is a limited currency. Unlike the real, dollar, and euro, currencies that can be issued as countries see fit, bitcoin and its code were created in such a way that only 21 million coins can be issued – this is the limit. By 2019, it is estimated that 18 million bitcoins had already been issued.