I was wondering if blockchain was discovered before crypto like Bitcoin, Litecoin, Dash, Ethereum etc.
Now, A blockchain is a public ledger of all transactions in a given system that have ever been executed. It is constantly growing as completed blocks are added to it etc. While, A cryptocurrency is a digital or virtual currency designed to work as a medium of exchange. It uses cryptography to secure and verify transactions as well as to control the creation of new units of a particular cryptocurrency etc.
Let us know how it started.