On the day upon which we honor President Lincoln, this quote by our current President merits reflection:

America was very lucky that Abraham Lincoln was President when he was President. If he hadn’t been, the course of history would be very different. But I also think that, despite being the greatest President, in my mind, in our history, it took another hundred and fifty years before African-Americans had anything approaching formal equality, much less real equality. I think that doesn’t diminish Lincoln’s achievements, but it acknowledges that at the end of the day we’re part of a long-running story. We just try to get our paragraph right.