DID YOU KNOW? for June 2 – 15, 2026

Luis von Ahn,an award-winning Guatemalan computer scientist and co-founder of Duolingo, developed CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) as a PhD student at Carnegie Mellon University in 2000. Luis von Ahnshared the technology with Yahoo for free because the company was struggling to keep automated spammers at bay. Learn more about Luis von Ahn in this article about Latino inventors and on Wikipedia.