CREATE TABLE table_18734 ("School" TEXT, "Location" TEXT, "Founded" FLOAT, "Affiliation" TEXT, "Mascot" TEXT, "Division" TEXT)

WHat year was north college hill high school founded?
SELECT MAX("Founded") FROM table_18734 WHERE "School" = 'North College Hill High School'
SELECT MAX("Founded") FROM "table_18734" WHERE "School" = 'North College Hill High School'