CREATE TABLE table_15983 ("State  ( class ) " CLOB, "Vacator" CLOB, "Reason for change" CLOB, "Successor" CLOB, "Date of successors formal installation" CLOB)

Who was the succesor that was formally installed on November 8, 1978?
SELECT "Successor" FROM table_15983 WHERE "Date of successors formal installation" = 'November 8, 1978'
SELECT "Successor" FROM "table_15983" WHERE "Date of successors formal installation" = 'November 8, 1978'