While we celebrated Superman's 75th in 2013, there was hardly a mention of Zatanna's father Zatara or the Crimson Avenger.
Last year, we commemorated the 75th of a little known caped crusader without a thought for The Sandman (Wesley Dodds), Blue Beetle (Dan Garret) or Doll Man.
So here is the list of DC heroes who turn 75 this year (Note- some characters not created by DC but are currently owned by them):
January: Flash (Jay Garrick), Hawkman (Carter Hall), Johnny Thunder
February: Captain Marvel (DC Comics), Spectre (Jim Corrigan), Doc Strange
March: Hourman (Rex Tyler)
April: Robin (Richard Grayson)
Spring: Catwoman (Selina Kyle)
May: Bulletman and Bulletgirl, Doctor Fate (Kent Nelson & Nabu)
July: Uncle Sam (comics), Green Lantern (Alan Scott), The Red Bee
October: Atom (Al Pratt)
November: Red Tornado (Ma Hunkel), Quicksilver (Max Mercury)
Winter: Justice Society of America
Seems strange that the current incarnations of some of these characters may not even survive their 75th in Earth 2: Worlds End!
SOURCE: https://en.wikipedia.org/wiki/List_of_superhero_debuts