CREATE TABLE table_203_135 (id NUMBER, "institution" CLOB, "location" CLOB, "founded" NUMBER, "type" CLOB, "enrollment" NUMBER, "joined" NUMBER, "nickname" CLOB)

how many conference schools were founded before 1900 ?
SELECT COUNT("institution") FROM table_203_135 WHERE "founded" < 1900
SELECT COUNT("institution") FROM "table_203_135" WHERE "founded" < 1900