After early "proof-of-concept" transactions, the first major users of bitcoin were black markets, such as the dark web Silk Road. During its 30 months of existence, beginning in February 2011, Silk Road exclusively accepted bitcoins as payment, transacting 9.9 million, worth about $214 million.: 222 ICO Price USD New Beginnings middot At the start of 2011, you could buy 1 Bitcoin for $0.30! The currency experienced a spike to above $15, but ended the year around $3. By the end of 2012, Bitcoin h