We can safely say he was born when writer created sasuke character. Uchiha Sasuke was born on July 23rd of the year Kyuubi attacked Konoha. They never mentioned the year Naruto anime premiered in Japan on TV Tokyo October 3, 2002,. Image source : Google. read more
Uchiha Sasuke was born on July 23rd of the year Kyuubi attacked Konoha. That attack, and Naruto’s birth, occurred a few months later, on October 10th. read more