Blockchain appeared the exact time is no relevant information, even its "initiator" Satoshi Nakamoto also do not know who. Since 2009, as more and more people participated, blockchain 1.0, represented by Bitcoin, was finally formed. In 2013, Vitalik Buterin was inspired by Bitcoin and proposed the Ethereum blockchain smart contract platform, which officially opened the ICO model. So ICOs aren't new, they're just popping up in the world of ordinary people. On Ethereum, anyone can qui...