Duolingo launched a private beta on November 30, 2011, and accumulated a waiting list of more than 100,000 people by December 13. [32] [33] It launched to the general public on June 19, 2012, at which point the waiting list had grown to around 500,000. [34] [35]

2024年9月15日 · Duolingo, the popular language learning app, was born in 2011. Its story is one of innovation and determination. Two friends, Luis von Ahn and Severin Hacker, had a big idea: make learning languages free and fun for everyone.

2025年2月13日 · One of the world's most famous cartoon owls got its heavenly wings this week after language-learning platform Duolingo announced the death of its beloved avian mascot. "Authorities are currently...

2024年9月12日 · Duolingo was conceived in 2009 by Luis von Ahn, a computer science professor at Carnegie Mellon University, and his Swiss-born graduate student, Severin Hacker.

2018年6月22日 · Founded: The idea for Duolingo comes after von Ahn’s company, reCAPTCHA, is bought by Google in September 2009. Initial company description: “The whole thing started as an academic project at Carnegie Mellon between me and my PhD student Severin Hacker.

2025年2月25日 · While Duolingo jokes its mascot was born in 1000 BC, Duo actually debuted in 2011, the year the app launched, according to Apple Developer. But Duo looked different then. But Duo looked different ...

2024年10月31日 · Duolingo was founded in 2011 by Luis von Ahn and Severin Hacker. The idea for Duolingo was formulated in 2009 at Carnegie Mellon University. Duolingo launched a private beta in November 2011 with a waiting list of over 300,000 people. Duolingo launched to the general public in June 2012 with a waiting list of around 500,000 people.

Duolingo launched a private beta on November 30, 2011, and accumulated a waiting list of more than 100,000 people by December 13. [32][33] It launched to the general public on June 19, 2012, at which point the waiting list had grown to around 500,000. [34][35]

2025年1月12日 · Duolingo’s founding in 2011 marked the beginning of a new era in language learning. The app’s innovative features, gamification approach, and real-time feedback system have made it a leader in the language-learning market.

2025年2月12日 · Duolingo’s release in 2011 marked the beginning of a new era in language learning. With its innovative approach to gamification, interactive lessons, and personalized learning, Duolingo has become a leader in the language-learning market.