CREATE TABLE table_27721 ("Institution" CLOB, "Location" CLOB, "Nickname" CLOB, "Founded" FLOAT, "Type" CLOB, "Enrollment" FLOAT, "Joined" FLOAT)

When was the University founded that joined in 1978?
SELECT MAX("Founded") FROM table_27721 WHERE "Joined" = '1978'
SELECT MAX("Founded") FROM "table_27721" WHERE "Joined" = '1978'