Sorry for the short Diary, but I wanted to bring your attention to this incredible graph made by Randall Munroe over at XKCD.
XKCD has long been one of my favorite corners of the internet, but MR. Munroe has out-done himself this time. This graph shows an ideological map of the two wings of american politics since the birth of the nation. It's all put together in as readable a fashion as you could ask for, and the amount of research and raw data that had to go into it is staggering, especially since it is posted on the internet for free. I'm not putting the actual graph in this diary because Mr. Monroe deserves the traffic for this, and also it is huge. I mean, HUGE. So click the first link in the diary and check it out!