In February 2011 Ross Ulbricht launched Silk Road, a black market site on the dark web available through the Tor browser.
This website used Bitcoin as a way of evading law enforcement and was eventually shut down in October 2013 leading to the arrest of Ross Ulbricht.
The FBI seized 144,336 Bitcoins’ and still to this day hold one of the largest Bitcoin balances in a single wallet.
However, they opted to sell these Bitcoin’s in a number of auctions between 2014 and 2015.
In total The Us Government sold the Bitcoins’ for $48.2 million meaning the average price of each Bitcoin was sold for $334.