RSS was created by Ramanathan V. Guha, Indian computer scientist who while working for Netscape personalized homepage project. However, the roots for RSS he found in his earlier project for Apple where his team developed Meta Content Framework.
Anyway his first RSS was know as RDF Site Summary, which became known as RSS 0.9. All that happened during beginning of year 1999. In July of 1999 Dan Libby removed RDF elements and added Dave Winner scripting news format of syndication. He also changed meaning of RSS acronym to Rich Site Summary. After that Netscape because of company internal changes (AOL takeover) stopped working completely on RSS.
Two groups dropped the eye on the project: RSS-Dev working group and Winner himself. Userland tried to get copyrights for RSS but failed to give all needed informations and proofs so their claims get rejected in 2001.
RSS-Dev working group with Guha on his side published RSS 1.0 version in December of year 2000 with again added support for RDF so as XML namespace support.
In same month same year Winner released RSS 0.92 with the minor changes in difference to RSS 0.91.
In autumn of 2002 Winner is putting out RSS 2.0,
However, since neither Winner nor RSS-Dev working group did not cooperated with Netscape, neither did they asked for approvals, they did not had rights on name neither technologies, so across the net different RSS development communities could not agree with whom to side.
In 2003, new format arrived in order to remove the problems that covered RSS history. During the same year Winner give copyrights of RSS 2.0 to Harvard”s Berkman Center for Internet & Society and he launched RSS Advisory Board which would in future cover development of RSS and provide answers to questions related to format.
In 2005 Microsoft Internet Explorer and Outlook team adopted the standard RSS icon for their uses. After few months Opera Software announced the same.