When Was Duolingo Created? The Fascinating Story Behind
Duolingo was created in 2009 when Carnegie Mellon University professor Luis von Ahn and his student Severin Hacker first formulated the idea in Pittsburgh, USA. The company officially launched its private beta on November 27, 2011, and went public on June 19, 2012. This free app addressed costly language education by crowdsourcing translations while teaching…