Dalida was first one to record the song in French, German and Italian. Lyrics of German version "An jenem Tag" were written by Heinz Korn, and Italian "Quelli erano Giorni" by Daiano.
Dalida was the first to lay down the song in multiple languages, including French, German, and Italian. The words for the German rendition "An jenem Tag" were composed by Heinz Korn, while the Italian version "Quelli erano Giorni" had lyrics written by Daiano.