Bitcoin was rolled out in 2009 by Satoshi Nakamoto; on the other hand, Ethereum went live in 2015, the product of developer Vitalik Buterin.
In the last one year, Bitcoin has seen an increase of approx 154%, while in the same period, Ethereum has seen an increase of approx 107%.
Bitcoin is the most recognized crypto of the lot. Ethereum, on the other hand, is the second in a row in terms of technological revolution and market cap.