In April 1991, a team from Sun began project Green as an entrance into commercial electronics software.
The Green team needed a platform independent development environment, and when James Goslings attempt to extend C++ for that purpose failed, Gosling started to develop a new language called Oak. Later when trademark search failed, Oak was renamed to Java.
The Green project incorporated into FirstPerson, Inc.. (1993) and was bidding a Time-Warner project for video-on-demand project. Around that time, Mosaic 1.0 was released by NCSA at the first graphical web browser.
Around 1994, the Time-Warner and a 3DO deal failed, FirstPerson Inc. layed off half of the staff. Remaining staff continued work at Sun to apply Java towards CD-ROM, on-line multimedia and network-based computing.
Later in 1994, the power of Java was realized and was used to build HotJava
Java was originally written in C and was later re-written in Java itself to demonstrate is power
In May 1995, Sun officially announced Java and HotJava at SunWorld '95 conference