Prehistoric Christmas Greeting Cards (20-Pack)The origins of many holiday traditions are ancient pagan practices that preceded the Christian era. We believe that several, like the decorating of trees and overeating, started in the Jurassic period. Wish your friends a good old fashioned Christmas with these cards that celebrate the timeless tradition of ugly holiday sweaters. Prehistoric Greeting Cards come in a box of 20 with white envelopes. Identical design. Cards read "Enjoy a good old