The campanella scuola is the familiar bell used in Italian schools to mark the start and end of lessons, breaks and the school day. As a soundboard clip it has travelled beyond Italy because the ringing is instantly recognisable even without understanding the words, making it useful for school-themed memes, classroom sketches and back-to-school videos on social platforms. Creators also use it as a simple timer or transition cue, a job it already does in real schools, which helps explain why such a plain everyday sound remains popular online.