Is Sol built on ETH?

I'm curious to know if Solana, a popular blockchain network, is actually built on top of Ethereum (ETH), the world's second-largest cryptocurrency by market capitalization. Both platforms offer smart contract functionality and have their own distinct ecosystems, but does Solana rely on Ethereum's technology or infrastructure in any way? I'm interested in understanding the technical architecture behind Solana and how it differs from Ethereum, especially if there's any connection between the two platforms.