The Mayans wrote about May 20, 2012. It it is the first date they mention about the year 2012.
Apparently, they expected something BIG to happen on this date and for a 16 day period up until June 6, 2012 during the Transit of Venus, when Venus passes in front of the Sun.
From what I have been able to gather, they are not the only ones who talked about it.
All research to this point has pointed only to the negative and nothing positive.
This is a good test in being able to determine whether the Mayans actually knew something or if this is just all bullshit.
Be ready boys, we could be in for quite the show.