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CLEVELAND (AP) - As Superman's 75th anniversary is marked, the super hero still reflects the tough Cleveland roots of his creators.

Superman collaborators Jerry Siegel and Joe Shuster lived several blocks apart in the Glenville neighborhood that shaped their dreams and Superman imagery.

Superman first appeared in Action Comics No. 1 published April 18, 1938.

Siegel's daughter, Laura Siegel Larson, says Cleveland's library, tough streets, comic pages and high school mentors all nurtured his imagination.

To mark the anniversary, the mayor will proclaim Thursday as Superman Day. The city will give out birthday cake at the Superman display at the airport.