January 1994: Jerry Yang and David Filo create Jerry’s Guide to the World Wide Web while studying at Stanford University.
April 1994: The search engine is renamed Yahoo.
March 1995: Yahoo is incorporated.
April 1996: Yahoo goes public, closing at $33 a share.
1997- 1999: string of acquisitions includes Four11, Viaweb, Yoyodyne Entertainment, Geocities and Broadcast.com.
January 2000: Yahoo stock hits all-time high of $475 (pre-split)
March 2001: Yahoo CEO Tim Koogle steps down.
April 2001: Terry Semel named as replacement CEO.
January 2001: Yahoo buys Hotjobs for $436 million.
December 2002: Yahoo buys Inktomi.
July 2003: Yahoo buys Overture.
March 2004: Yahoo launches its own search engine.
March 2005: Yahoo acquires Flickr photo-sharing service.
August 2005: Yahoo buys 40 percent of Alibaba.com for $1 billion.
June 2007: Jerry Yang replaces Terry Semel as CEO.
February 2008: Microsoft makes $44.6 billion bid for Yahoo.
November 2008: Jerry Yang steps down as CEO.
January 2009: Carol Bartz joins Yahoo as CEO.
September 2011: Carol Bartz is fired.