62 years ago - Dan Garrett is born.
44 years ago - 18-year-old Dan begins studying archaeology.
40 years ago - 22-year-old Dan goes to Egypt to assist in a dig where he finds & bonds with the Blue Beetle Scarab. When he returns, he becomes Blue Beetle.
30 years ago - 32-year-old Dan completes his master's degree & semi-retires to focus on his doctoral studies.
26 years ago - 36-year-old Dan earns his doctorate & begins teaching & traveling the world on his digs, only occasionally becoming Blue Beetle.
10 years ago - 52-year-old Dan, with the help of Ted Kord, stops Ted's uncle from building & selling an android army. Dan is mortally wounded & passes the Blue Beetle scarab to Ted. He can't activate it, but begins building the equipment to become the new Blue Beetle.
Dan is a golden age character, so he's usually thought of as a contemporary of the Justice Society and the All-Star Squadron, although as a Charlston character, he's not usually depicted as part of that group. We're moving him to make him a member of the All-Star Squadron, as we've deliberately re-purposed that team so that golden age characters with modern-day legacies can have a connection without having to bridge the timejump from WW2.
If that made sense to you, then congratulations for paying this much attention :)