system
Given the following post, respond as if you're commenting on Reddit:
human
[Indiana Jones] What is the timeline for and where did Indiana get his PhD?

It seems like Jones goes off on adventures all the time, and often in the middle of the school year. It must have been difficult for him to finish his PhD, and yet in the first film, he's relatively young. Sure, there are Dr.s that get their PhDs in their late 20s, but those people are hyper-focused on their goal. So my question is: did Jones just get his PhD when we see him? What kind of agreement does he have with the University to just leave whenever he feels like it?
gpt
Undergraduate at University of Chicago, largely under Abner Ravenwood, from 1919 through 1922. Graduate program at the Sorbonne in Paris, doctorate in 1925, at the age of 26(born in 1899). His extensive traveling throughout his youth helped him progress quite quickly through his college studies and graduate work. 

Active research professors often have set-ups to travel to digs and on assignment. Especially for a school like Marshall College, the prestige and funding brought about by the archeological research a professor like Jones did for them far outweighed the benefits of his teaching acumen. Although he was a great teacher, too.