A popular version of the story is that Sadako fell short of her goal of folding 1,000 cranes, having folded only 644 before her death, and that her friends completed the 1,000 and buried them all with her. (This comes from the book Sadako and the Thousand Paper Cranes.) However, an exhibit which appeared in the Hiroshima Peace Memorial Museum stated that by the end of August 1955, Sadako had achieved her goal and continued to fold more cranes.[3] Also, in a black-and-white documentary film her father said that she had made approximately 1,400 paper cranes, which his parents had kept (he showed them in the documentary), and that her classmates made an additional 1,000 paper cranes, which were buried with her.[citation needed]