Bruce Wayne, who witnessed the murder of his multi-millionaire parents as a child, swore to avenge their deaths. He trained extensively to achieve mental and physical perfection, mastering martial arts, detective skills, and criminal psychology. Costumed as a bat to prey on criminals’s fears, and utilizing a high-tech arsenal, he became the legendary Batman.
Detective Comics #27 – The Case of the Chemical Syndicate
The very first appearance of the Bat-Man in the six-page story “”The Case of the Criminal Syndicate!”” This issue also features the first appearances of Commissioner Gordon and the revelation of Bat-Man’s secret identity as Bruce Wayne.