HISTORY_EVENT TO_CHAR(TIME_ID,'DD-
------------- --------------------
            1 01-JAN-1976
            2 01-JAN-1915
            3 01-JAN-1928
            4 01-JAN-1937
            5 01-JAN-1949
            6 01-FEB-1959
            7 01-FEB-1996
            8 01-FEB-1997
            9 01-FEB-1998
           10 01-FEB-1998

10 rows selected.