Though manga is often associated with words and pictures, it can also be a form of animated genre. The chosen style of storytelling makes this a unique type of manga. One of the first manga to be released in the United States was Tezuka Osamu's Astro Boy in 1952. This was the first serialized comic book published and translated into English for an American audience. While many people think that anime originated in Japan, this is not true. The word "anime" actually comes from the word "animation." This term was used to describe Japanese animated films at the time when they were being created in Japan between 1917 and 1970, when they became popularized internationally .