The very first appearance of Superman...73 years ago.<br /> <br /> This is the book that started the Golden Age of Comics, which lasted from May 1938 until approximately 1950.<br /> <br /> Action Comics #1; published May 3, 1938<br /> <br /> Writer: Jerry Siegel<br /> <br /> Cover by: Joe Shuster<br /> <br /> In 2010, an issue of Action Comics #1 sold for $1,500,000 online.