People in the media have been making a lot of references to Barack Obama's first 100 days in office. CNN even keeps a progress report of how he's doing during this crucial period. But, what's so special about this span of time?

Jane and I have discussed the role of first lady on the Stuff You Missed in History Class podcast. We've explained that the office is an unofficial one (it's mentioned nowhere in the Constitution), and it's a position that a woman falls into by virtu ...

After the United States elected Barack Obama as its 43rd president, Historians went to the polls to pick their favorites of the last 42.