What is Solana (SOL)?

Solana is a blockchain network that focuses on fast transactions and high output. Solana uses a unique method of sorting transactions to increase its speed. Users can pay transaction fees and interact with smart contracts using SOL, the network's native cryptocurrency.
Solana is a highly functional open source project that uses permissionless blockchain technology to provide decentralized finance (DeFi) solutions. While initial idea and work on the project began in 2017, Solana was officially launched in March 2020 by the Solana Foundation headquartered in Geneva, Switzerland. To learn more about this project, check out our deep dive on Solana.
Scalability is one of the biggest challenges with regards to blockchain technology. As the network grows, it often experiences limitations related to transaction speed and confirmation time. Solana aims to overcome these limitations without sacrificing security or decentralization.

Founded in 2017 by Anatoly Yakovenko of Solana Labs, the Solana blockchain adopts a new method for verifying transactions. Bitcoin, Ethereum, and many other projects are experiencing scalability and speed issues. Using a method known as Proof of History (PoH), the Solana blockchain is capable of handling transactions per second.

Solana is the third generation Proof of Stake blockchain. This blockchain has implemented a unique way of creating a trustless system for determining transaction times called Historical Proofs. Tracking the sequence of transactions is very important in the field of cryptocurrency. Bitcoin does this by combining transactions into blocks with a single timestamp. Each node must validate the block according to the other nodes.

That's a little explanation about solana hopefully useful for you.
Web3 Infrastructure for Everyone | Solana