Hagerstown เข้าร่วมในปีใด?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
What's the year that Hagerstown joined?It is not neccessary to use all the tables.
 table_name_66:  (year_joined [ VARCHAR ] school [ VARCHAR) ]
SELECT year_joined FROM table_name_66 WHERE school = "hagerstown"