The answer you get might be so sweet and takeable but believe me the ethereum was proposed in late 2013 by Vitalik Buterin, July and August 2014 the online crowdsale took place on 30 July 2015 the the system went live with 72 million coins "premined". Remember Constantinople had trouble coming out of the starting gate. And Ethereum will hit $1450 this year believe me.... Why am i so such because I've seen it coming, so invest with Ethereum.. Best of Luck.....
Hope this help.
