We have heard a lot about cryptocurrencies over the years. Cryptocurrency is virtual money; no real coins or banknotes. As we can see, now the world is divided into crypto-positive and crypto-negative people. Some consider cryptocurrency a joke, while others consider it the future of online commerce and economic enterprises. The earliest and most famous cryptocurrency is called bitcoin. It is also the most valuable type of virtual money. At the time of writing, 1 BTC is worth $20,000. Have you ever wondered how something that cost only $1 in 2011 grew to such a huge size?