Both Bitcoin and Ethereum are Cryotocurrencies.

They use almost the same Blockchain technology and decentralized market.

They are mined the same way, as users(or so called miners) dedicate their computational power to help processing transactions, secure the market and connect all users, they get rewarded with the tokens.

Bitcoin is the first Cryptocurrency and it is the first crypto-protocol introduced to the world.

On the other hand, Ethereum is categorized as “AltCoins” (as Alternative Coins) which follows the fundamental protocol of Bitcoin and strive to create better system and service for users.

Ethereum would have been never existed without Bitcoin. And now both Cryptocurrencies are helping each others to grow the recognizance of Cryptocurrency’s benefit.