North Carolina's official State motto is esse quam videri which is Latin and means To be, rather than to seem (to be). Car Licence plates in North Carolina carry the motto "First in Flight." commemorating the Wright Brothers first flight in a powered heavier than air machine on 3rd December 1903.
There are no holidays unique to North Carolina. North Carolina is one of only 12 states in which Good Friday is a holiday, and it's one of only seven states in which Christmas Eve is a holiday.