Syndication format family tree

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A family tree of syndication formats, showing the closest predecessor and date of first major publication of each.

                 MCF
                Dec 96
                  |
         +--------+-------+
         |                |
        RDF *            CDF
       Feb 97           Mar 97
         |                |
      RSS 0.9--------ScriptingNews 
       Mar 99           Dec 97
         |  |             |
         |  +----------+  |
         |             |  |
         |           RSS 0.91
         |            Jul 99
         |              |
      RSS 1.0        RSS 0.92
       Dec 00         Dec 00
         |  |           |   
         |  |       +---+-----+---------+
         |  |       |         |         |
         |  |    RSS 0.93  RSS 0.94     |
         |  |     Apr 02    Aug 02      |
         |  |                           |
         |  +-----------------------+   |
         |  |                       |   |
         |  |                      RSS 2.0 **
         |  |                       Sep 02
         |  |                         |
         |  +---------------------+   |  
         |                        |   |
         |                       Atom 0.3
      RSS 1.1                     Dec 03
       Jan 05                       |
                                 Atom 1.0
                                  Jul 05

* Not a syndication format
** Several sub-versions exist