Here’s a list of doodles which were used by Google in the year 2011.
Thomas Edison’s Birthday
Jules Verne’s 183rd Birthday
Lantern Festival 2011
Australia Day
Will Eisner’s 94th Birthday
Royal Wedding
Father’s Day
Jean de la Fontaine’s 390th Birthday
100th Anniversary Of The Rediscovery Of Machu Picchu
112th Birthday Of Jorge Luis Borges
 Robert Burns Day
100th Birthday of Taro Okamoto
Women’s Day
400th Birthday Of Evliya Çelebi
Pierre de Fermat’s 410th Birthday
Teachers’ Day
Jim Henson’s 75th Birthday
Veterans Day
Mark Twain’s 176th Birthday
Yury Nikulin’s 90th Birthday
Anniversary Of the Ice Cream Sundae
50th Anniversary Of The First Man In Space
Children’s Day
120th of Birthday Of Sergey Prokofiev
Doodle 4 Google US by Matteo Lopez
Parkes Observatory’s 50th Anniversary
Day of the Dead
Hideyo Noguchi’s 135th Birthday
New Year’s Eve 2011