I haven't; I _did_ read Unschooling and Why Johnny Can't Read by
  John Holt, as well as Summerhill by J.S. Neill when I was 14
  years old and in the 8th grade.

  Then, at 18 yrs old in 1990 college on the newly minted (to me)
  Internet, I found a group of people who ran Sudbury schools
  around the world and chatted with them a lot in mailing lists.

  So, I have always had an interest in alternative schooling; I
  have loved the rise of homeschooling with the Internet over the
  past few years with some excellent (and some not-so-excellent)
  online schools for elementary, middle, high school is a
  marvelous development, along with the self-education (for better
  and for worse) available via the Internet in general.

  So it's a deep interest across all subjects including history. I
  do most of my learning via the Internet; I've done so for the
  past 27 years now; so it's not TOO often that I'll crack open a
  book to read cover-to-cover, but I like going to the library and
  flipping through, looking at headers, chapter titles, pictures,
  index, table of contents, italicized - in short, speed-reading
  through it... in an attempt to increase the amount of different
  perspectives as I can.