Ada Lovelace Day has been held in five consecutive years, on March 24 2009, March 24 2010, October 7 2011, October 16 2012 and October 15, 2013. There is no significance to the dates chosen. (Ada Lovelace's birthday is December 10 and the anniversary of her death is November 27.) Ada Lovelace Day will be next held on October 14, 2014.