What I want to express here is that when Satoshi Nakamoto created the Bitcoin network, there was no concept of blockchain. What he built is the operating network of Bitcoin and called it "A Peer-to-Peer Electronic Cash System." So Bitcoin itself belongs to a system. Three or five years after the birth of Bitcoin, technical personnel in the existing society discovered the power and indestructibility of the Bitcoin network. Countless hackers have tried to steal Bitcoin to no avail. The underlying technology of Bitcoin has been verified. Later, on the technology of the underlying technology of Bitcoin, the scientific and technical personnel summarized a brand new technology, named it the blockchain, and then step by step we have the now prosperous crypto world.
1991-2008: Early Years of Blockchain Technology:
How did blockchain emerge? Stuart Haber and W. Scott Stornetta envisioned what many people have come to know as blockchain, in 1991. Their first work involved working on a cryptographically secured chain of blocks whereby no one could tamper with timestamps of documents.
Source:
https://101blockchains.com/history-of-blockchain-timeline/As you can see, there was a concept of blockchain before Bitcoin... You can also read that:
Nakamoto conceptualized the first blockchain in 2008 from where the technology has evolved and found its way into many applications beyond cryptocurrencies.
Nice article, you can read about the evolution of Blockchain too:
1. Evolution of Blockchain: Phase 1- Transactions 2008-2013: Blockchain 1.0: Bitcoin Emergence
2. Evolution of Blockchain: Phase 2- Contracts 2013-2015: Blockchain 2.0: Ethereum Development
3. Evolution of Blockchain: Phase 3- Applications2018: Blockchain 3.0: the Future
Do you still think that Bitcoin was before Blockchain? Or maybe you think this article is misleading?