By Carolyn Duffy Marsan
Network World
October 9, 2009

Web Browser Milestones

The Web browser turns 15 on Oct. 13, 2009 – a key milestone in the history of the Internet. That’s when the first commercial Web browser – eventually called Netscape Navigator – was released as beta code. While researchers including World Wide Web inventor Tim Berners-Lee and a team at the National Center for Supercomputing Applications created Unix browsers between 1991 and 1994, Netscape Navigator made this small piece of desktop software a household name. By allowing average users to view text and images posted on Web sites, Netscape Navigator helped launch the Internet era along with multiple browser wars, government-led lawsuits and many software innovations. Here are 15 highlights in the history of the Web browser.

October 13, 1994

First commercial browser released
Mosaic Communications Corp. – later renamed Netscape Communications Corp. – releases the beta version of its Web browser, called Mosaic Netscape 0.9. It was based on the Mosaic code developed by the NCSA, and Mosaic co-author Marc Andreessen was a co-founder of Netscape. The browser was later renamed Netscape Navigator. Version 1.0 was released on Dec. 15. Navigator was the first commercial Web browser to be wildly successful, rapidly achieving 90% market share before Microsoft entered the fray and took over the market. By 2000, Netscape’s market share would fall under 1%, Janco Associates says.

April 30, 1995

Web traffic dominates Internet
Six months after Netscape released its browser, Web traffic became the leading type of traffic on the Internet. For example, Web traffic accounted for 21% of the traffic on the National Science Foundation’s NSFNET backbone, while the No. 2 usage, File Transfer Protocol, traffic accounted for 14% of the traffic, according to livinginternet.com . This was a sign of the rapid adoption of Navigator, which saw 50 million copies distributed in its first two years, according to BusinessWeek.

August 24, 1995

Microsoft muscles into the browser market
Microsoft released Internet Explorer 1.0 in its Windows 95 Plus! Pack. Internet Explorer was built upon software licensed from Spyglass, an offshoot of NCSA that owned the technology behind the Mosaic browser. Microsoft bundled Internet Explorer into its operating system and provided it free of charge. Microsoft’s approach was smart; two years later Microsoft had replaced Netscape as the leading browser provider, with 49% of the market compared with 46% for Netscape, according to Janco Associates.