As to everyone doing what Obama did every once in a while, I have to take issue with that and say it is incorrect.
Since I retired I have forgotten what day it is because I don't have to be anywhere most of the time, but I have never made a mistake on the year.
All the bashing about this thread and even the News Media have made the case it was a goofy mistake, along with him making too long a pause in his toast of the Queen. However I give him a pass for the most part on that because it was the orchestra leader who was truly at fault. It just made Obama look bad again.