Kids just grow up so quickly... On January 7, 2003, Steve Jobs announced at Macworld San Francisco that Apple had developed its own web browser called Safari. On that day, the first beta version was released. Apple based Safari 1 on its internal fork of the KHTML rendering engine known as WebKit.
Four years later, almost to the day on January 9, 2007, Jobs announced the iPhone and noted that it would use a mobile version of the Safari browser. Six months later, at the 2007 WorldWide Developers Conference, Jobs announced Safari 3 for Mac OS X v10.5, Windows XP and Windows Vista. At the time, Safari 3 was the fastest web browser for Windows. Of course, the company has since dropped support for Windows.
We can't wait to see what happens to Safari when it becomes a teenager next year... Meanwhile, here's the announcement of Safari at Macworld in 2003.