Google Doodles. Выбрала некоторые. Кстати, не все они "на весь мир", некоторые региональны. Ещё интересно смотреть что придумали на одну и ту же дату в разные годы. И да, всё тут в весьма относительной хронологии.
если не по теме - можно удалить)Это самый первый.
Aug 30, 1998
в честь ежегодного фестиваля Burning Man, проходившего в Невадской пустыне
Sep 22, 2000
2000 Summer Games in Sydney - Weightlifting
+кучаNov 14, 2001
Claude Monet's Birthday
Oct 31, 2002
Happy Halloween - (US)
Oct 25, 2002
Happy Birthday Picasso
Mar 14, 2003
Albert Einstein's Birthday
Feb 14, 2003
Happy Valentine's Day
Jun 16, 2003
MC Escher's Birthday
May 11, 2003
Mother's Day
Apr 22, 2003
Earth Day
Dec 26, 2003
Holiday Series 2003
Oct 31, 2003
Happy Halloween - (US)
Oct 03, 2003
Deutschland reunification - (Germany)
May 09, 2004
Mother's Day
Apr 23, 2004
St. George's Day
Apr 22, 2004
Earth Day
Aug 27, 2004
2004 Athens Olympic Games - Gymnastics
Aug 20, 2004
2004 Athens Olympic Games - Soccer
Mar 30, 2005
Vincent Van Gogh's Birthday
Mar 17, 2005
St. Patrick's Day - (US)
Jan 01, 2005
Happy New Year
May 03, 2005
Teacher's Day - (US)
Apr 15, 2005
Leonardo Da Vinci's Birthday
Sep 27, 2005
Google's 7th Birthday
Feb 21, 2006
2006 Torino Olympic Games - Curling
Jan 27, 2006
Mozart's Birthday
Jan 04, 2006
Louis Braille's Birthday
Jun 09, 2006
World Cup 2006
May 22, 2006
Sir Arthur Conan Doyle's Birthday
May 09, 2006
Russian Victory Day - (Russia)
Mar 17, 2007
St. Patrick's Day - (US)
Jan 16, 2007
Dr. Martin Luther King Jr. Day - (US)
Jun 17, 2007
Father's Day
Jun 12, 2007
Russia Day - (Russia)
May 24, 2007
Cyrillic Alphabet's Day
May 13, 2007
Happy Mother's Day
Apr 22, 2007
Earth Day
Sep 27, 2007
Google's 9th Birthday
Jul 14, 2007
Bastille Day - (France)
Dec 21, 2007
Holiday Series 2007
Mar 03, 2008
Alexander Graham Bell
Feb 14, 2008
Valentine's Day
Feb 02, 2008
Carnival - (Brazil)
Jan 28, 2008
50th Anniversary of the LEGO Brick
Jan 01, 2008
Happy New Year & 25 years of TCP/IP
Jun 08, 2008
Dragon Boat Festival - (China, Hong Kong, Taiwan)
Jun 06, 2008
Diego Velázquez's Birthday
Jun 01, 2008
Children's Day - (Poland)
May 16, 2008
Invention of the First Laser
May 15, 2008
Anniversary of the first film projection - (Spain)
May 11, 2008
Mother's Day
May 05, 2008
Children's Day - (Japan)
Apr 23, 2008
St. George's Day - (UK)
Apr 22, 2008
Earth Day
Sep 29, 2008
Miguel de Cervantes' Birthday - (Spain)
Sep 27, 2008
Google's 10th Birthday
Sep 14, 2008
Mid-Autumn Festival - (Vietnam)
Sep 14, 2008
Mid-Autumn Festival - (China, Hong Kong, Taiwan, Japan)
Sep 10, 2008
Large Hadron Collider
Aug 14, 2008
2008 Beijing Olympic Games - Basketball
Jul 08, 2008
Nasreddin Hodja Festival
Jul 07, 2008
Marc Chagall's Birthday - images are copyrighted and were used in this Google doodle with the permission of the Artist Rights Society, which represents the Chagall estate.
Dec 23, 2008
Happy Holidays from Google 2008
Dec 14, 2008
Shinkansen - (Japan)
Nov 01, 2008
1000 Years of The Tale of Genji - (Japan)
Nov 01, 2008
Day of the Dead - (Mexico)
Oct 20, 2008
25th Anniversary of the opening of the Sydney Opera House - (Australia)
Oct 16, 2008
Queen Elizabeth II Visits Google London - (UK)
Mar 08, 2009
International Women's Day
Jan 26, 2009
Chinese New Year
Jan 16, 2009
Doodle 4 Google China: Doodle by 张博 - (China)
Jun 06, 2009
25th Anniversary of Tetris
un 06, 2009
Alexander Pushkin's Birthday - (Russia)
May 31, 2009
150th Anniversary of Big Ben - (UK)
May 07, 2009
Alexander Popov's Invention of the Radio - (Russia, Ukraine, Belarus)
May 01, 2009
Children's Day - (Mexico)
Apr 27, 2009
Samuel Morse's Birthday
Apr 23, 2009
St. George's Day - (UK)
Apr 22, 2009
Earth Day
Apr 01, 2009
200th Anniversary of Gogol
Sep 28, 2009
Confucius' Birthday
Sep 27, 2009
Google's 11th Birthday
Aug 12, 2009
Perseid Meteor Shower
Jul 22, 2009
Solar Eclipse
Jul 20, 2009
40th Anniversary of the Moon Landing
Jul 14, 2009
Bastille Day - (France)
Jul 10, 2009
Birthday of Nikola Tesla
Jul 07, 2009
Anniversary of the publication of Pinocchio - (Italy)
Dec 22, 2009
Happy Holidays from Google 2009
Oct 31, 2009
Happy Halloween!
Oct 15, 2009
Mikhail Lermontov's Birthday - (Russia)
Oct 07, 2009
Invention of the Bar Code
Mar 17, 2010
St. Patrick's Day
Mar 14, 2010
Pi Day
Mar 14, 2010
Mother's Day - (Ireland, UK)
Mar 08, 2010
Women's Day - (Russia)
Mar 04, 2010
Vivaldi's Birthday
Feb 24, 2010
Winter Olympics - Ice Hockey
Jan 29, 2010
150th Anniversary of Anton Chekhov's Birthday - (Russia)
Jan 18, 2010
Dr. Martin Luther King Jr.'s Day - (US)
Jan 14, 2010
Celebration of Chinese Culture - (China)
Jan 04, 2010
Sir Isaac Newton's Birthday (если найти этот дудл на сайте, то там есть ещё одна очевидная плюшка)
Jan 01, 2010
Happy New Year
Jun 29, 2010
Antoine de Saint-Exupery's 110th Birthday - (France, Germany)
Jun 20, 2010
Happy Father's Day
Jun 11, 2010
Jacques Cousteau's 100th Birthday
un 08, 2010
Robert Schumann's 200th Birthday - (Germany)
May 21, 2010
PAC-MAN's 30th Anniversary Doodle - PAC-MAN™ & ©1980 NAMCO BANDAI Games Inc.
May 09, 2010
Mother's Day - (US)
May 07, 2010
170th Birthday of Pyotr Ilyich Tchaikovsky
Apr 22, 2010
Earth Day
Apr 16, 2010
Italy's Culture week - (Italy)
Apr 15, 2010
Children's Day - (Spain)
Apr 02, 2010
Hans Christian Andersen's 205th Birthday
Aug 19, 2010
Anniversary of Belka and Strelka Space Flight - (Russia)
Aug 12, 2010
71st Anniversary of The Wizard of Oz
Oct 16, 2010
Oscar Wilde's Birthday
Oct 09, 2010
John Lennon's 70th Birthday. Courtesy of Yoko Ono Lennon/Bag One Arts, Inc.
Sep 15, 2010
Agatha Christie's 120th Birthday
Sep 12, 2010
Discovery of Grotte de Lascaux
Sep 04, 2010
25th Anniversary of Buckyball
всё тут, а это - бонус для самых стойких, то что призвано победить flash - html5