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
                                 Jul 05

*  A data model rather than a syndication format (serializations may be syndicated)
** Several sub-versions exist