Bitcoin is the world’s first cryptocurrency, developed in 2009.
In 2009, the price of 1 Bitcoin was $0.0001, while in year (October) 2017, the price of one Bitcoin was $6.658.-
You can find the actual daily exchange rate here:
Bitcoin is not regulated by a Central Bank, so people won’t be flood with it, which would cause inflation.
The value of Bitcoin is specified only by demand and supply.