What date was the person ordained as a priest in December 1838 ordained as a bishop?
CREATE TABLE "archbishops" (
  "archbishop" text,
  "born" text,
  "ordained_priest" text,
  "ordained_bishop" text,
  "appointed_archbishop" text,
  "vacated_throne" text,
  "died" text
);
SELECT "ordained_bishop" FROM "archbishops" WHERE "ordained_priest"='December 1838';