response: I know that it became available widely in the US on 2015
original_response: It became available worldwide in June 2015. What will you be using the echo for if deciding to purchase one?
history: I'm considering buying the Amazon Echo, but don't know much about it. Well, I know that the echo devices are a development of Amazon Lab126 When did the echo first debut?
knowledge: The first-generation Echo was initially limited to Amazon Prime members or by invitation, but became widely available in the United States on June 23, 2015.