Astro Boy (鉄腕アトム Tetsuwan Atomu, "Mighty Atom," lit. "Iron Arm Atom") is a Japanese manga series first published in 1952 and television program first broadcast in Japan in 1963. The story follows the adventures of a robot named Astro Boy and a selection of other characters along the way.
Astro Boy is the first, most popular Japanese television series that embodied the aesthetic that later became familiar worldwide as anime. It originated as a manga in 1952 by Osamu Tezuka, revered in Japan as the "God of Manga." After enjoying success abroad, Astro Boy was remade in the 1980s as Shin Tetsuwan Atomu, known as Astroboy in other countries, and again in 2003. In November 2007, he was named Japan's envoy for overseas safety. An American computer-animated 3-D film based on the original manga series by Tezuka was released on October 23, 2009.
Source: Wikipedia, "Astro Boy", available under the CC-BY-SA License.