The Many Adventures of Winnie the Pooh derived from three previously released animated featurettes Disney produced based upon the Winnie-the-Pooh books by A. A. Milne: "Winnie the Pooh and the Honey Tree" (1966), "Winnie the Pooh and the Blustery Day" (1968), and "Winnie the Pooh and Tigger Too" (1974). Extra material was used to link the three featurettes together to allow the stories to merge into each other. A fourth, shorter featurette was added to bring the film to a close, originally made during production of "Blustery Day" (based on the presence of Jon Walmsley as Christopher Robin). The sequence was based on the final chapter of
Winnie-the-Pooh (book) 1960s, the Milne story lines were used by Disney in its cartoon featurette "Winnie the Pooh and the Honey Tree". The "look" of Pooh was adapted by Disney from Stephen Slesinger's distinctive American Pooh with his famous red shirt that had been created and used in commerce by Slesinger since the 1930s. "Winnie-the-Pooh" was shortly followed by "The House at Pooh Corner", also by Milne. "Return to the Hundred Acre Wood", by David Benedictus was the first official post-Milne Pooh book written with the full backing of A. A. Milne's estate, which took the trustees ten years to agree to.