Currently, Microsoft co-founder Bill Gates is worth almost $90 billion and is the richest man in the world, according to Forbes. But everybody starts somewhere. A glimpse of his resume from 1974, when he was 18, reveals that during his first year at Harvard, Gates was already making $15,000.

In today's dollars, that's almost $75,000, according to the U.S. Bureau of Labor Statistics' inflation calculator. Impressive for a college freshman. Though it's not clear from where that income came, the resume says that he and future Microsoft co-founder Paul Allen (today worth more than $20 billion) were working "in partnership" and had designed a program for an early Intel computer. The CV also shows Gates worked as a programmer at TRW Systems Group in Vancouver, a developer of military and civil space systems (which was acquired by Northrop Grumman in 2002).