CREATE TABLE table_2119 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Type" TEXT, "Enrollment" FLOAT, "Nickname" TEXT, "Joined" FLOAT, "Left" FLOAT, "Current Conference" TEXT)

What joined year does Dropped Athletics have?
SELECT MAX("Joined") FROM table_2119 WHERE "Current Conference" = 'Dropped athletics'
SELECT MAX("Joined") FROM "table_2119" WHERE "Current Conference" = 'Dropped athletics'