According to the famous manga, AstroBoy was born on April 7th 2003.
Google often updates their logos on holidays, etc and Astro Boy's Birthday was given a special logo on Google in Japan.
Happy Birthday AstroBoy!
More Astro Boy Posts!
Items on YJ:
Rose of Versailles
ANN via Same Hat! Same Hat!
[AstroBoy][Unico][Rose of Versailles][anime][Tezuka Osamu]