Why is North Carolina Called the Tarheel State?

There are more then one reasons why North Carolina nickname is the Tar Heel State. One reason is that workers that were waterproofing ships with the sap from Pine trees (that is none as ‘Tar’) would get stuck to their feet and they were called ‘Tar Heels’, in the Colonial days. Another reason is that in 1781 Cornwallis troops walked through the Tar River and came out with Tar on their feet.