Here are six facts you may not know about Christmas: 1. The Bible does not give a specific date for the birth of Jesus Christ. The Catholic Church chose this date so that it would coincide with the pagan festival of Saturnalia. 2. An average of 15,000 Americans are sent to the ER every year due to holiday-related decorating accidents. 3. "How the Grinch Stole Christmas," starring Jim Carrey, is the highest-grossing Christmas movie of all time. 4. Every Christmas season, an estimated 3.6 million Japanese families treat themselves to Kentucky Fried Chicken. 5. “Silent Night” is the most recorded Christmas song in history, with over 733 different versions since 1978. 6. Rudolph the Red-Nosed Reindeer first appeared in a marketing campaign for retailer Montgomery Ward.