The company that owns Superman doesn't seem to be marking the occasion just yet, but today the real-life city where creators Jerry Siegel and Joe Shuster gave the character life, Cleveland, Ohio, is throwing a major bash. Mayor Frank G. Jackson declared today, 75 years to the day since the release of Superman's first appearance in Action Comics #1, Superman Day in the City of Cleveland, according to a press release.

In a 1 p.m. ceremony at City Hall, officials raised a Superman flag and adorned the building with red, blue and yellow lights. Terminal Tower was likewise lit up. Cleveland-Hopkins International Airport joined in the festivities, too, with cupcakes and a birthday card for visitors of its new Superman exhibit to sign. The city also encouraged fans to tweet photos of themselves in their favorite Superman poses using the hashtag #SuperCle.

Speaking of Twitter, a slew of comics creators and fans marked the occasion today by offering up their favorite moments in Superman history. In particular, Superman: Birthright writer Mark Waid had tons of great memories to offer, including his favorite Clark-to-Superman transformation:

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