What is the colonized date for the n/a charter range for appalachian state?
CREATE TABLE "naming_rules" (
  "chapter" text,
  "colonized" text,
  "chartered" text,
  "school" text,
  "state" text,
  "status" text,
  "charter_range" text
);
SELECT "colonized" FROM "naming_rules" WHERE "charter_range"='n/a' AND "school"='appalachian state';