Bitcoin Cash emerged in August 2017 as a hard fork of the original Bitcoin blockchain after a group of developers backed by a number of large companies, mining pool operators, and individual investors responded to calls to increase the block size from 1MB to 8MB.
Another group of Bitcoin developers and enthusiasts joined forces behind Segregated Witness (SegWit), a Bitcoin upgrade aimed at increasing the block size limit by removing certain pieces of data from transactions.
Over time Bitcoin Cash’s block size has grown from 8MB to 32MB, however, disagreements within the project were mounting as well, ultimately resulting in another hard fork and the establishment of Bitcoin SV (Satoshi’s Vision) in November 2018.
Led by the self-proclaimed Bitcoin creator Craig Wright, BSV was designed as an alternative software to the Bitcoin ABC implementation of Bitcoin Cash. The latter included Roger Ver and Jihan Wu among its backers.
Nearly three and half years later, the two projects are living their own lives, with Bitcoin Cash undergoing yet another hard fork in November 2020.