The first Google Doodle was in honor of the Burning Man Festival of 1998. The doodle was designed by Larry Page and Sergey Brin to notify users of their absence in case the servers crashed. Subsequent Google Doodles were designed by an outside contractor, until Larry and Sergey asked then-intern Dennis Hwang to design a logo for Bastille Day in 2000. Hwang has been designing the Google Doodles ever since.
source – wikipedia.
Below you will find Doodles displayed in Poland during several years for different reasons.
World Cup 2006
Polish Independance Day 2008 
Polish Independance Day 2009
Grand Parents Day 2009
Grand Parents Day 2010
Polish Independance Day 2010
Grand Mother Day 2011I think just Poland 2011
Polish Independance Day 2011 
Polish Independance Day 2012 
I think just whout occasion 2012
Polish Independance Day 2013 
Grand Father Day 2014
I think Valentines Day 2014
25 years of freedom in Poland 2014
