People, we’re gonna turn Facebook upside down for a day! Yes, we can. When? Flip 6/9 upside down and you get… 6/9! Similarly, turn 9/6 around 180° and you get 9/6 again. That’s why we will turn Facebook upside down on the 9th day of the 6th month: June 9th* 2009. This day will be known as UPSIDE DOWN FACEBOOK DAY!