What is Ethereum?
The core technology behind Bitcoin is blockchain technology. Adding a "smart contract" to the blockchain is Ethereum. Ethereum is a platform and programming language that enables developers to build and publish the next generation of distributed applications. Ethereum can be used to program, distribute, guarantee and trade anything: voting, domain names, financial exchanges, crowdfunding, enterprise management, contracts and most agreements, intellectual property rights, and intelligent assets that benefit from hardware integration.
Which country does Ethereum come from?
Does not belong to any country. Ethereum is a brand-new and open blockchain platform, which allows anyone to build and use decentralized applications running through blockchain technology. Just like Bitcoin, Ethereum is not controlled by anyone, nor is it owned by anyone-it is an open source project co-founded by many people around the world.