Based on a white paper published in 2017, the EOSIO platform was developed by the private company Block.one and released as open-source software on June 1, 2018. At the launch of the blockchain, one billion tokens were distributed as ERC-20 tokens by Block.one. The CEO of Block.one, Brendan Blumer, announced that the company would support the EOSIO blockchain with over one billion USD in funding from the token sale and ultimately Block.one raised over four billion USD to support the blockchain during the Initial Coin Offering (ICO) period.[5]

The original test net, Dawn 1.0, was released on September 3, 2017, with test net versions Dawn 2.0 released on December 4, 2017, Dawn 3.0 on January 25, 2018, and Dawn 4.0 on May 7, 2018. The name of the cryptocurrency EOS comes from Ancient Greek Ἠώς, "dawn".[citation needed]

EOSIO's Dawn 1.0 was launched on the EOSIO mainnet on June 1, 2018, and is currently operating under version 2.1.0.[3]

In September 2019, Block.one agreed to settle U.S. Securities and Exchange Commission charges related to the $4 billion unregistered ICO for a $24 million penalty.[6][7] The settlement did not require a restitution offer, registration of tokens, or any 

EOS Network Foundation

In August 2021, Yves La Rose founded the organization EOS Network Foundation (ENF). La Rose is an EOS enthusiast who disputes the way Block.one has managed to blockchain and its tokens. The organization has attempted to pressure Block.one into reinvesting its profits into development of the blockchain, and to support new development.[9]