public static function initialize()
    {
        self::$_dictionary = array();

        // Load default datetime strings
        if (empty(self::$_datetime_dictionary)) {
            self::$_datetime_dictionary = include LANG . '/datetime.php';
        }

        // Load default transliterations
        if (empty(self::$_transliterations)) {
            self::$_transliterations = include LANG . '/transliterations.php';
        }

        // Load default English language
        if (empty(self::$_languages)) {
            self::$_languages = self::createLanguage('en', 'English', 'english');
        }

        // Fetch all available languages
        self::fetch();
    }