CREATE TABLE table_202_85 (id DECIMAL, "club" TEXT, "league" TEXT, "sport" TEXT, "venue" TEXT, "established" DECIMAL, "championships" TEXT)

which of the madison sports teams was established first ?
SELECT "club" FROM table_202_85 ORDER BY "established" LIMIT 1
SELECT "club" FROM "table_202_85" ORDER BY "established" NULLS FIRST LIMIT 1