I made a thread some time ago with what I felt were 10 of the most classic Bitcointalk posts.  I'll link to it below.  It's not a bad place to start if you're wanting to learn more about what has gone on here over the years, especially the highlights.  Throughout the thread you'll find that other people have also listed some threads that they feel were important.  Feel free to add to their suggestions if you think there's been a thread that hasn't been represented.  Happy reading.  Enjoy!

TEN CLASSIC Bitcointalk posts:
https://bitcointalk.org/index.php?topic=2822621.0