GUEST+_+ | The following is what I found in http://en.wikipedia.org/wiki/Flash_mob, hope can help
Worldwide Pillow Fight Day (or International Pillow Fight Day) was a pillow fight flash mob that took place on March 22, 2008. Over 25 cities around the globe participated in the first "international flash mob", which was the world's largest flash mob to date.[3] According to The Wall Street Journal, more than 5,000 participated in New York City, overtaking London's 2006 Silent Disco gathering as the largest recorded flash mob.[2] Word spread via social networking sites, including Facebook, Myspace, private blogs, public forums, personal websites, as well as by word of mouth, text messaging, and email. Participating cities included Barcelona, Basel, Beirut, Boston, Budapest, Canberra, Chicago, Copenhagen, Dubai, Dublin, Dundee, Houston, Innsbruck, London, Los Angeles, Madrid, Melbourne, Monterrey, Montreal, New York City, Paris, Pécs, Shanghai, San Francisco, Stockholm, Sydney,Tel-Aviv, Toronto, Vancouver, Washington, D.C., and Zurich.[12][27]
|