Well, i totally disagree with that defineition of a pagan! A pagan is a very broad term for a lot of diffrent beliefs...just as there are diffrent branches of christains (eg - catholic, protastant etc)
In a nut shell - a pagan is anyone of the religion before christains...the druids / celts were pagan, as well as the greek/roman mythology.
The Christains took a lot of the olde holidays, and turned them into church holidays...
a wonderful example...a better definitionmore reading 
