I really have never learned anything in depth about anything Vietnam and beyond. I have learned about every other American fought war at least 5 times throughout my life and know the basic odds and ends. I got bored with Roman history personally, it was interesting but i dont know, it just wasn't my cup of tea. I was interested in history before Roman Times however and it was neat to get a basic idea of how civilization started. Also, the French Revolution was cool as well, mainly because the revolutionists were somewhat crazy and beheaded everybody and many reverted back to their old conservative ways.