I have just recently added a calendar feature to the site. It will show holidays, members birthdays, and events added by members. The birthdays will also show up on the main page of the site. I have not enabled the birthdays to show up yet because I figured that members who do not care to share their age can do so by inputting "0000" in the year field of their profile under the "Forum Profile Information" section. If you have not inputed your birthday information in your profile, it will not show up in the calendar. I will enable the birthdays to show up in a few weeks time.
Feel free to add your own events that you may like to share.