Bitcoin is the #1 most popular cryptocurrency in the world with a massive market cap of over $500 billion according to Coinmarketcap.

Like most cryptocurrencies, Bitcoin has skyrocketed to over $27,000 per coin from its March lows of $3,000 as more investors purchase Bitcoin as a realistic hedge against fiat currencies.
Bitcoin is the official name of the cryptocurrency and each individual unit is called a satosti.
The fictional founder of Bitcoin, Satoshi Nakamoto, created Bitcoin as the people's money that maintains a limited supply (only 18 million coins) and independence from the central banking system.
Most people refer to Bitcoin in the BTC/USD price but you can convert Bitcoin to many different currencies around the world.
Bitcoin is similar to digital gold and carry very similar properties that make it attractive to investors looking for an honest hedge against the US dollar.
While Bitcoin transactions take longer to perform than altcoins like Ripple, Bitcoin is the first and most widely accepted cryptocurrency by a long shot.