Masters credits having a historian on staff during the development process for keeping them on track and not letting them take too many liberties.

CNN: American history unfolds in 'Assassin's Creed 3'

And in just a few minutes, you're going to hear a little bit more about the whole process of state visits and dinners from White House Historian, Bill Allman.

WHITEHOUSE: First Lady Michelle Obama Discusses State and Official Visits | The White House