Most of the people identifying as American are of English descent and/or Scots-Irish descent. Their families have been in the state so long, in many cases since before statehood, that they choose to identify simply as having American ancestry or do not in fact know their own ancestry. Their ancestry primarily goes back to the original 13 colonies and for this reason many of them today simply claim American ancestry. Many people who identify themselves as Irish descent are in fact of Scots-Irish descent.