$BTC

Bitcoin ($BTC) is like the "money of the internet," created in 2009 by someone (or a group) named Satoshi Nakamoto. Unlike the real or dollar, it is not controlled by any government or bank — it is decentralized and runs on something called blockchain, which securely records everything. A lot of people like BTC because it is limited (only 21 million will exist), which makes many see it as a way to protect money in the long term. Of course, the price goes up and down a lot, but it remains the most famous currency in the crypto world. So, do you already have yours?