Teaser trailer is out for Batman v Superman: Dawn of Justice
In this trailer we see that Ben Affleck looks old. His hair is gray from the side. Batman and Superman were created/introduced nearly at the same time.
Superman's first appearance was in Action Comics #1, published by National Allied Publications, a corporate predecessor of DC Comics, on April 18, 1938 (cover-dated June 1938). In 1939, a self-titled series was launched.
Based on historical data from the Registrar of Copyrights, DC Entertainment recognizes that the world’s most popular Super Hero — Batman — was first introduced to the public 75 years ago on March 30, 1939, in Detective Comics #27.
Both are very close. But I assume Superman has special powers so he aged slowly. Thus they've aged differently. But when this story is based from the point of Batman, what age of Batman are they showing? Which comic are they following?
Can anyone refer me a timeline of this story from the point of Batman to understand his aging?