CREATE TABLE table_26714 ("Legion no. and title" CLOB, "Main legionary base" CLOB, "Emblem" CLOB, "Date founded/ founder" CLOB, "Date disband" CLOB, "Castra legionaria  ( legion bases )  * = main base. Start date 31BC if unspecified" CLOB, "Notes" CLOB)

When did svishtov , bulgaria disband?
SELECT "Date disband" FROM table_26714 WHERE "Main legionary base" = 'Svishtov , Bulgaria'
SELECT "Date disband" FROM "table_26714" WHERE "Main legionary base" = 'Svishtov , Bulgaria'