Google modifies their home page by including birthdays of some major personalities around the world or major events. Here are some of the best, unique and presented in more than one country. The list below is not any particular order.
2009.05.20 – Charles Darwin Birthday
2009.11.13 – Water on Moon found
1998.08.30 – Burning Man (One of the first of Google’s modified logos!)
2006.01.04 – Louis Braille’s Birthday
2009.10.07 – Barcode Invention
2003.03.14 – Einstein’s Birthday
2006.02.11 – Olympics Snowboarding
2005.04.15 – Leonardo Da Vinci Birthday
2009.05.20 – Darwinius Masillae
2009.01.28 – Jackson Pollock Birthday
2002.05.20 through 24 – Dilbert Comics
2005.03.30 – Van Gogh’s Birthday
2006.12.12 – Edvard Munch Birthday
2008.06.06 – Diego Velazquez’s Birthday
2007.04.01 – April Fool Day — (TiSP)
2009.02.12 – Samuel Morse Birthday
2004.02.03 – Gaston Julia’s Birthday
Fractals
2009.10.29 – Asterix Comic’s 50th Anniversary