See the Characters of Batman As First Introduced in the Comic Books

By Joseph C. Lin
Batman first appeared in Detective Comics Issue #27 in 1939. Although it was the May issue, the comic was actually released in March.DC Entertainment
Robin joined Batman's crime-fighting escapades a year later in Detective Comics Issue #38 in 1940.DC Entertainment
The Riddler began to entangle Batman and Robin in Detective Comics Issue #140 in 1948.DC Entertainment
BATMAN 121 lineart
Mr. Freeze made his first appearance in Batman Issue #121 in 1958.DC Entertainment
The Joker and Catwoman would make their first appearances in the Batman universe in the first issue of the standalone Batman comic released in 1940.DC Entertainment
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Poison Ivy made her first appearance in Batman Issue #181 in 1966.DC Entertainment
Batgirl made her first appearance in Detective Comics Issue #359 in 1967.DC Entertainment

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