I think it would be fair to mention DITOOLS and JENNA in the history of MOGRAPH.
Cinema 4D's MOGRAPH didn't appear "from nowhere"...
MOGRAPH had two ancestors : the DITOOLS and JENNA Cinema 4D plugins.
These plugins had both advanced deformers and generators very similar to the MOGRAPH tools. MOGRAPH took the idea further with the system of effectors, but the basic functionalities were already available in DITOOLS and JENNA.
When I tested MOGRAPH back in 2005, everything felt extremely familiar including the tabs layout. We could see were it came from...
Remotion's DITOOLS included:
-A displacer, the "DiShaper". It worked with both procedural and bitmap textures, in any projection. It supported normal and depth maps.
-A cloner, the "Dicloner". It included all the famous cloning method (Polygon, Vertex, Edge, Random, Area, etc...) and selection tags. It could modulate the clones parameters with tags and textures. It was a very powerful cloner even capable of generating TP particles.
-A spline deformer, the 'DiSplineDeformer". This was exactly like the MOGRAPH equivalent.
-And dozens of other tools, like the "DiTessa" (parametric tessellation), "DiSplineGen" (texture based spline generator), DiParserSpline (formula based spline generator), "DiParametric" (Formula object generator) or the Placement Painting (a clone painter).
Per-Anders actually discovered these type of parametric tools with DITOOLS, as you can read in my 2002 thread on CG society:
https://forums.cgsociety.org/t/english-resource-for-the-ditools-plugin-available/649184
"I’ve already learnt tons about these tools that i doubt i would have done by just experimenting alone… they’re just darn useful and i never did realise just how powerful they were!!!"
JENNA had also strong mographing tools. There was NICKL (procedural shader displacer), ITERATOR and ALLIE (advanced cloners). The manual is still online, for the curious:
https://davidpatrickfarmer.com/wp-content/uploads/2019/02/Jenna_v2.25.pdf
I'm not writing this to dismiss the work of Paul and Per-Anders. MOGRAPH is, without a doubt, an excellent tool. But it's sometimes important to put things in context, to acknowledge the programmers who paved the way and were never in the limelight. It's just like mentioning Lorentz and Poincaré when we talk about Einstein's Theory or Relativity.