Byteball is an interesting and special project, in fact it does not use a blockchain: it makes use of a revolutionary new technology called a Directed Acylic Graph or “DAG”.
It's very famous in the Bitcoin community because the ByteBall coins were distributed to Bitcoin holders during 2017 in a proportion to how much they held.
The project began in late 2014 when the Russian technologist, Anton Churyumov, was looking for ways to solve issues that he saw existed on the Bitcoin blockchain. Thus ByteBall was born and it was launched around the end of December 2016.