public static function easterDays($year, $method)
    {
        if ($method == CAL_EASTER_ALWAYS_JULIAN ||
            $method == CAL_EASTER_ROMAN && $year <= 1582 ||
            $year <= 1752 && $method != CAL_EASTER_ROMAN && $method != CAL_EASTER_ALWAYS_GREGORIAN
        ) {
            return self::$julian_calendar->easterDays($year);
        } else {
            return self::$gregorian_calendar->easterDays($year);
        }
    }