Event is always January 18. Winnie the Pooh Day is an opportunity to enjoy your favorite bear and all of his friends. This day was created to celebrate the birth of A.A .Milne in 1882. He was an author of children’s story books, and created Winnie the Pooh and his friends. Winnie’s pals include Christopher Robin, Tigger, Eeyore, Piglet, and Roo. Have some fun today. Celebrate Winnie the Pooh Day by reading some storybooks about the adventures of Winnie and his friends. Don’t read them alone. Read them with young children. Did you Know? In his works, he was known as A.A. Milne. The initials stand for Allan Alexander.