With the spread of English, many assumed that Esperanto would die out, yet today, because of the visibility it’s gained from the digital revolution, the language is still adding followers. The popular language-learning mobile application, Duolingo, added Esperanto to its catalog of languages in 2015, and it quickly gained more than 600,000 active users. Today, Esperanto is spoken by nearly 2 million people as a second language in 115 countries.