Martin Luther King Jr.

President Obama and his wife Michelle hit the steps of the Lincoln Memorial in Washington, DC for the Let Freedom Ring Commemoration, with the First Lady wearing an elegant Tracy Reese frock. The First Lady is pretty conscientious when it comes to selecting her outfits for public occasions; it's fitting she chose to wear an African American designer to celebrate such a watershed moment in the Civil Rights movement.

Click through to see all the looks from Mad Men and let us know what you think of the episode in the comments.