When is web3 started?

The concept of Web3 began to take shape in the early 2010s, gaining more traction with the development and popularization of blockchain technology, particularly after the creation of Bitcoin in 2009 and the launch of Ethereum in 2015. Ethereum's introduction of smart contracts and decentralized applications (dApps) significantly advanced the Web3 movement by providing a robust platform for building decentralized applications.

While there's no precise start date for Web3, its foundational ideas have been evolving alongside blockchain technology over the past decade. The term "Web3" itself was popularized around 2014-2015 by Ethereum co-founder Gavin Wood, who outlined the vision for a decentralized web. Since then, the Web3 ecosystem has grown, encompassing various projects, platforms, and protocols aimed at decentralizing the internet.