Since Coinbase was founded in 2012, hundreds if not thousands of Bitcoin competitors (typically referred to as alt-coins) were created. But Coinbase ignored the noise and remained focused on supporting just one currency: Bitcoin.
But today that changes, as Coinbase is announcing that they are adding site-wide support for Ethereum, a digital currency with a built in programming language designed to support and execute peer-to-peer digital contracts.
Confirmation: https://gyazo.com/899405abc56ccec5c8f6ff4b94a89570