CREATE TABLE table_242785_1 (date_disband VARCHAR2, main_legionary_base VARCHAR2)

When did svishtov , bulgaria disband?
SELECT date_disband FROM table_242785_1 WHERE main_legionary_base = "Svishtov , Bulgaria"
SELECT "date_disband" FROM "table_242785_1" WHERE "Svishtov , Bulgaria" = "main_legionary_base"