The Joomla! community has a long history of Joomla!Day events from around the world. Let's document these here, so we can ensure we have a historical timeline of Joomla!Days.
Instructions: please add the name, date, location, and if possible the web address, of any Joomla!Days that have happened in the past. Please use the following format: Name_of_Joomla!Day - Month DD-DD, YYYY - City, Country
Joomladay Netherlands (1), April 22nd 2006, Location?
Joomladay Netherlands (2), December 8th and 9th 2006, Den Bosch
Joomladay Germany 2006
Joomla!Day USA West - September X-Y, 2007 - Mountain View, California, USA
Joomla! Day NYC - October 13, 2007 - New York, New York, USA
Joomladays Netherlands (3), april 4th and 5th 2008, Location?
Joomladay Germany 2009
Joomla!Day New England - May 30, 2009 - Brattleboro, Vermont, USA
Joomla!Day New England - June 5, 2010 - Marlboro, Vermont, USA
Joomla!Day DC - October 16, 2010 - Chevy Chase, Maryland, USA
Joomla!Day New York City - December 4-5, 2010 - New York City, New York, USA
Joomla!Day New England - April 2, 2011 - Brattleboro, Vermont, USA
Joomla!Day Chicago - August 5-6, 2011 - Chicago, Illinois, USA
Joomla!Day Austin - September 15, 2011 - Austin, Texas, USA
Joomla!Day Washington DC - October 15, 2011
Joomla!Day NYC - October 22-23, 2011 - New York City, NY, USA
Joomla!Day Midwest - November 12, 2011 - Milwaukee, Wisconsin, USA