Thanks for the rep! I'm optimistic about the chances of Obamacare being a success, I don't see how flooding a well-regulated insurance market with 30,000,000+ new customers could be a bad thing.
You're right...history is admittedly a bit difficult subject because there are all kinds of evidence and it is difficult to say that which of them is 100% reliable.
Perhaps it is better to add this sentence before commenting on the historical issues; "Some sources claim that..."