CREATE TABLE table_28436909_4 (organization VARCHAR2, founding_date VARCHAR2)

When 1873-12-25 is the founding date how many organizations are there?
SELECT COUNT(organization) FROM table_28436909_4 WHERE founding_date = "1873-12-25"
SELECT COUNT("organization") FROM "table_28436909_4" WHERE "1873-12-25" = "founding_date"