On the 12th of May there has been two years with updates, 2006 and 2011. The update in 2006 was a new pin and in 2011 Club Penguin updated the Beta Team.
The pin hidden on this day in 2006 is Club Penguin’s fifth pin overall. It was the Balloon Pin and you could find it at the Dock.
The update in 2011 has to do with the Beta Team. Extra Rollerscape (now known as Pufflescape) levels were added for testing. Skyscraper was added too, although it was broken and did not work.
Want to see and learn more? Check out these pages about the topics mentioned above.