Bitcoin Cash came from a desire to improve Bitcoin as a medium of exchange, rather than an investment medium. Following the Bitcoin community’s lack of consensus surrounding Bitcoin’s scalability, the blockchain split, resulting in the creation of Bitcoin Cash.
2017 spiked interest and resulted in the Bitcoin network becoming congested as adoption increased. This led to a backlog of transactions and increasing transaction fees, which wasn’t conducive to Bitcoin being used for everyday transactions.
That’s when the scaling debate really took off.
The scaling debate
A portion of the community wanted to maintain Bitcoin’s current 1MB block sizes and saw Segwit (Segregated Witness), as a long term solution. The other part of the community made up of primarily Bitcoin miners and advocates like Roger Ver, wanted to increase the block size to 8MB, so that it would allow more transactions to be processed per block.
The two groups couldn't reach a consensus and decided to part ways with a hard fork.
The hard fork
On 1 August 2017, the hard fork created a completely new and separate cryptocurrency: Bitcoin Cash.
Since then, the Bitcoin Cash community continues to develop its technology beyond simply offering a ‘bigger-blocks’ alternative to Bitcoin (BTC). Their focus is on facilitating everyday transactions, making them cheaper and faster so that it can be used as digital cash for everyday purposes.