In 1993, the National Center for Supercomputing Applications(NCSA) released NCSA Mosaic browser. It was the first popular graphical web browser.
In 1994, a new company called Mosaic Communications was founded in Mountain View, California. They hired many original NCSA Mosaic authors to create a new browser called Mosaic Netscape. The internal codename of the browser was Mozilla, which is a combination of Mosaic and Godzilla. The new web browser, Mosaic Netscape 0.9 was released in 1994.
Within 4 months, Mosaic Netscape took 75% of browser market. To avoid trademark problem with NCSA, the browser was renamed to Netscape Navigator and Mosaic Communications was renamed to Netscape Communications.
Netscape Communications realized the browser needed a language to make it more dynamic. In 1995, company recruited Brendan Eich with the goal of embedding Scheme programming language to Netscape Navigator.