Through books I've read on my own. I had a really good U.S. history teacher in high school (actually better than the ones I had in college) and my Dad was a Civil War buff, so we visited a lot of historic sites when I was a kid, but most of what I've learned has been since I graduated from college and developed a personal interest in reading and learning on my own.
"What we become depends on what we read after all of the professors have finished with us. The greatest university of all is a collection of books."
---Thomas Carlyle
