On October 31, 2008, Satoshi Nakamoto published white paper "Bitcoin: digital peer-to-peer cash system", which marked the beginning of the history of the first and main cryptocurrency. Nakamoto's goal was to create a system that could send payments directly without the involvement of financial institutions.                                                           
The first 50 bitcoins were born on January 3, 2009, they were grouped in a unit called a block. But the price of bitcoin was calculated on October 5, 2009 and it was $0.00076.                                                    But in 2010, the first transaction was recorded when one of the network users bought pizza for 10 000 BTC. At that time, it was about $ 25.                                                                          At the end of 2013, for bitcoin already gave 1000 us dollars. In just five years, the cryptocurrency has made a significant leap up. However, then the rate gradually decreased.                                                                                Since 2014, there is again a trend to reduce the rate of bitcoin. At the same time , despite the forecasts that the value of the crypto currency will show a fall for a long time, a sharp rise began in may. As a result, the rate reached $ 600, and the capitalization of bitcoin exceeded $ 30 billion. This level remained until September,and in December was broken another record, reaching $ 1000.                                                                                In 2017, the sharp growth of bitcoin continues to increase and in June was already$2900.                                                                                           
 In December 2017, Bitcoin reached its highest level ever — about $ 20,000 for 1 bitcoin.                                                 
In January 2018, the bitcoin exchange rate began to fall. But we all sincerely believe that the next breakthrough will happen very soon.                             
But also many analysts