User blog comment:Gingergreeney/HELP!/@comment-3361105-20120801212713

you can read about the two ages here Silver Age and Golden Age. The Golden Age was the period in which comic books saw their first boom, and people look back on it fondly. Its characters were the first version, as created by their original creators. This period lasted from about 1937 to the mid 50s or so, when comic sales began to lull.

The Silver Age was when Julius Schwartz revamped many of the characters and renewed interest in them. This is where Hal Jordan, and Barry Allen come from. The Golden Age Green Lantern and Flash were Alan Scott and Jay Garrick, respectively.