Answer: Dragon Ball manga was released on September 10th, 1985
Explanation: The series was serialized as 519 individual chapters in the magazine Weekly Shōnen Jump from December 3, 1984, to June 5, 1995. These chapters were collected by Shueisha into a series of 42 tankōbon volumes; the first released on September 10, 1985, and the last on August 4, 1995.