Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. It was created in January, 2009, by a group of people who use the pseudonym Satoshi Nakamoto. Satoshi originally described the need for “an electronic payment system based on cryptographic proof instead of trust.”
Since its public launch Bitcoin has risen dramatically in value. As the supply of Bitcoin is limited and is only 21 millions of coins, many people expect its price to keep rising only as time goes on, especially when more institutional investors begin treating it as a sort of digital gold to hedge against market volatility and inflation.