Detective Comics #27 (Batman Debut)

Detective Comics #27, published in 1939, marks the debut of Batman, a cultural icon that has captivated audiences for generations. This comic book introduced a darker, more complex hero than the brightly colored characters that preceded him, setting a new tone for the superhero genre. Key features like Batman's cowl, cape, and the Bat-Signal instantly became iconic. It played a pivotal role in shaping the Golden Age of comics and established Batman as a symbol of justice and vengeance in a world grappling with real-world anxieties.