The first bitcoin blockchain server is believed to have come online on January 3, 2009. This is the date that the genesis block, or the first block in the bitcoin blockchain, was mined. The identity of the person or persons who created the bitcoin blockchain is unknown, but they are known by the pseudonym Satoshi Nakamoto.
Other related questions:
Q: In what year did the Bitcoin network first come online?
A: Bitcoin first came online in 2009.
Q: When was Bitcoin blockchain invented?
A: Bitcoin’s blockchain was invented in 2008 by Satoshi Nakamoto.
Q: What was the first online Bitcoin wallet?
A: The first online Bitcoin wallet was Bitcoin Core, which was released in 2009.
Q: Is Bitcoin hosted on a server?
A: Bitcoin is not hosted on a server. Bitcoin is a decentralized peer-to-peer network.