All Winnie the Pooh lovers will know that January the 18th is National Winnie the Pooh day. It actually celebrates the birthday of Winnie the Pooh author AA Milne, who wrote the famous books about the adventures of Pooh and his friends in Hundred Acre Wood. Pooh, Tigger, Eeyore, Piglet and Christopher Robin got up to all sorts of fun throughout their journeys together, with the occasional game of Pooh sticks as well.