Pope Leo XIV appears to have resumed lessons on a popular language-learning platform after a year’s hiatus.

In recent weeks, users of the educational app Duolingo noticed a long-inactive profile under the name “Robert”, the Pope’s baptismal name, suddenly spring to life and accumulate remarkable progress.

Duolingo, an online programme that allows users to learn foreign languages through short daily exercises and quizzes, is used by millions across the world. It awards XP for each completed lesson, recording progress on a visible public profile.