In his first story he gets introduced as bored Bruce Wayne. Making his awesome costume he became a crime fighter keeping mobs and everything off the streets.Batman utilized his Utility Belt for the first time to remove a glass pellet filled with deadly gas in Detective Comics #29 (July 1939). The first boomerang-like Batarang and the first bat-themed vehicle, the Bat-plane, made their debuts in Detective Comics #31 (September 1939).
His tragic story of his family getting mugged and killed coming home from the movies, it came in the comic Detective Comics #33.
The Dynamic Duo was born in Detective Comics #38 (April 1940) with the introduction of Batman’s trusty sidekick, Robin the Boy Wonder. Dick Grayson was a circus performer who was orphaned when a gangster murdered his parents. After Batman teamed up with Robin, the tone of the stories changed. No longer a grim avenger who talked to himself, Batman evolved into a lighthearted father-figure trading wisecracks with his young partner. Originally, Bob Kane agreed to try out Robin for just one issue, as DC’s publisher Jack Liebowitz was against the idea of having a youngster fighting gangsters. After sales doubled on the first issue to feature the Boy Wonder, Liebowitz sheepishly agreed to keep Robin in future stories.
In 1940 Batman got his own name. In his new comics 2 villons, the Joker and Catwoman (sometimes just called the Cat). Many other key pieces of Batman’s world were introduced in the 1940s. Batman’s home of Gotham City was first named in Detective Comics #48 in 1940, and the Batcave was introduced in Batman #12 in 1942. Batman's first car was an ordinary red sedan, but in Batman#5 (Spring 1941) the new Batmobile roared into action sporting its own bat-headed battering ram.

