Bitcoin is the OG cryptocurrency. Bitcoin was created by Satoshi Nakamoto, who remains unknown. There’ve been numerous claims to who Satoshi may be, with many pointing towards a group of people but to date, nobody can say for certain who created the first cryptocurrency.
Bitcoin was released in 2009 along with a white paper authored by Nakamoto. This has served as the blueprint for all other cryptocurrencies.
One significant feature of Bitcoin is its limited supply: Total Bitcoin circulation will be capped at 21 million, according to Nakamoto’s white paper. The rate of Bitcoin production, created through mining, is also set at a hard cap and production rates continue to decrease as more of the cryptocurrency is mined.