The character made his first appearance in Detective Comics #27 (May, 1939). Witnessing the murder of his parents as a child leads him to train himself to physical and intellectual perfection and don a bat-themed costume in order to fight crime.

Batman operates in Gotham City, assisted by various supporting characters including his sidekick Robin and his butler Alfred Pennyworth, and fights an assortment of villains influenced by the characters' roots in film and pulp magazines.

Few elements of the character's history have remained constant. Pearson noted in the early 1990s, "Unlike some fictional characters, the Batman has no primary urtext set in a specific period, but has rather existed in a plethora of equally valid texts constantly appearing over more than five decades." The central fixed event in the Batman stories is the character's origin story.

As a little boy, Bruce Wayne is shocked to see his parents, the physician Dr.

A cultural icon, Batman has been licensed and adapted into a variety of media, from radio to television and film, and appears on a variety of merchandise sold all over the world.

The Batman goes by numerous nicknames, such as The Dark Knight, The Caped Crusader, or just the Bat.

"The Batman phenomena gives me great satisfaction to realize that I have millions of fans in the world.

That I have created a hero that influenced so many people in the world and it gives me a wonderful spiritual satisfaction to know that and it really touches my heart, I feel so gratified that I created a superhero who can reach all elements of our society, And that's quite fulfilling" Batman is a superhero co-created by artist Bob Kane and writer Bill Finger and published by DC Comics.

For key points in Batman's history see Batman's career timeline.

Batman's history has undergone various revisions, both minor and major.

Thomas Wayne and his wife Martha Wayne, being murdered by a mugger in front of his very eyes.

This drives him to fight crime in Gotham City as Batman.

As the decades wore on, differing takes on the character emerged.