Ethereum is a blockchain platform with its own cryptocurrency,called Ether (ETH) or ethereum and it own programming,it was launched June 2015 by a small group of blockchain enthusiasts.i'm also into crypto currency exchange for a long time now so I do research on new cryptocurrency platform after my research I came across ethereum and have been dealing with them for the past few years now and it has not crashed up to this moment.
I trade with ethereum cause it allows private transactions, permissioned network and network size,it also has a lack of censorship.Ethereum spawns other cryptocurrency,it also uses a different blockchain than bitcoin does.Ether is now an accepted form of payment by some merchants and service vendor, ethereum has now created a platform where more complex contracts can be run on network.