OVER 300 MIND-BLOWING FACTS! WIDE-RANGING SUBJECTS: There's something for every interest: with facts about geography, pets, US presidents, sports, history, pop culture, language, literature and more! FROM THE BESTSELLING BOOK: This Page-a-Day calendar is taken from the book, Interesting Facts for Curious Minds, which has sold over 1 MILLION copies. A GREAT GIFT FOR GRAMPS: Perfect for that family member or favorite trivia buff who loves to spout statistics and little-known trivia. NOW PLASTIC-FREE!: Page-A-Day Calendars are environmentally friendly! Printed on responsibly sourced paper and 100% recyclable, with sturdy cardboard backers.