the story of Jesus has many striking similarities with other stories found in predated religions. it's not easy to see it's a copycat. the earlier Christians didn't have Internet and libraries to figure this out but we, the people of the 21st century, should know better.
http://listverse.com/2009/04/13/10-christ-like-figures-who-pre-date-jesus/
/thread
Be careful with that one. I don't believe that anyone who has made (or repeated) such claims has ever been able to provide a single reference to writings (which predate those of the New Testament) that support them.