src/content/images_www/js/timeline_2.3.0/timeline_js/scripts/l10n/it/labellers.js

/*==================================================
 *  Localization of labellers.js
 *==================================================
 */

Timeline.GregorianDateLabeller.monthNames["it"] = [
    "Gen", "Feb", "Mar", "Apr", "Mag", "Giu", "Lug", "Ago", "Set", "Ott", "Nov", "Dic"
];