[Oberon] An attempt at an Oberon family tree

[Bernhard Treutwein]

Hi Liam,

 > Comments, suggestions, improvements, etc are actively solicited!

although I am slightly puzzled by being forced to register befor being able
to view the family tree ... here is some feedback:

Algol-60 and Algol-W are missing. Both are precursors of Pascal and both 
have
entries in Wikipedia ...

I don't think that ActiveOberon is a descendant of Oberon-2, it inherits
from plain old Oberon, Object-Oberon and Oberon-XSC (this was a conjoined
PhD project between University Karlsruhe and ETHZ; it also influenced 
Zonnon).

Object Oberon: 
https://www.research-collection.ethz.ch/handle/20.500.11850/68697