Doraemon is a Japanese manga series created by Fujiko Fujio, which later became an anime series and an Asian franchise. The series is about a robotic cat named Doraemon, who travels back in time from the 22nd century to aid a pre-teen boy called Nobita Nobi. The series first appeared in December 1969, when it was published simultaneously in six different magazines. A total of 1,344 stories were created in the original series, which are published by Shogakukan under the Tent��mushi manga brand, extending to forty-five volumes. The volumes are collected in the Takaoka Central Library in Toyama, Japan, where Fujiko Fujio was born. Turner Broadcasting System bought the rights to the Doraemon anime series in the mid-1980s for a US English-language release, but canceled it without explanation before broadcasting any episodes. In July 2013 it was announced that the manga would be released digitally in English via the Amazon Kindle e-book service. Most of Doraemon episodes are comedies with lessons regarding values such as honesty, perseverance, courage, and respect. Various environmental issues are often visited, including homeless animals, global warming, endangered species, deforestation, and pollution. Miscellaneous educational topics such as dinosaurs, the flat Earth theory, wormhole traveling, Gulliver's Travels, and the history of Japan are often covered.