Bitcoin price change big event.
due to technical reasons
In February 2011, the exchange Mt. Gox was established, allowing people to buy Bitcoin with us dollars. So Bitcoin price rose from 0.05 to over $1.
In February 2014, Mt. Gox announced that its servers had been DDoS attacked . At that time, Mt. Gox already controlled about 60% of all Bitcoin transactions. Prices fell 30% as a result.
international event impact
In October-November 2013, institutions around the world announced that they would start accepting Bitcoin as a payment method. The Chinese people started buying Bitcoin in large quantities, and its price soared from $120 to $1,150.
In December 2013, the People’s Bank of China banned bitcoin payments , and its price fell to $500.
media influence
In April 2010, a source code update was released . After this report, the price rose about 10 times.
In April 2011, Time Magazine published a Bitcoin article on the future of cryptocurrency. The price of Bitcoin then rose from $10 to $30.