6 Remarkable Revivals in the 2021 Crypto Boom that Shook the Digital World
5. Polkadot’s Rapid Expansion

Polkadot, a multi-chain network designed for interoperability between blockchains, also saw a major revival in 2021. The launch of parachain auctions, where projects bid to secure slots on the Polkadot network, added excitement and momentum, helping it surge in popularity and value.