Upper left: Yahoo was co-founded by grad students David Filo (left) and Jerry Yang.
Upper right: Pictured here is former Grateful Dead front man Jerry Garcia; his death in 1995 was the subject of the first news item posted on Yahoo's home page.
Lower right: Sequoia Capital invested $2 million in Yahoo in 1995.
Lower left: Yahoo participated in a 1996 Web protest against a telecommunications bill signed by President Clinton.
Credit: Yahoo, from its birthday retrospective