The timeline does skip a bit too fast over Medos-2[1], the predecessor of the Lilith's operating system, using Modula-2. That plugs the gap between the Alto-Obe

The timeline does skip a bit too fast over Medos-2[1], the predecessor of the Lilith's operating system, using Modula-2. That plugs the gap between the Alto-Oberon timeline, with Oberon basically being both a continuation of that and a simplification of Smalltalk and the whole software environment in total (surprise: Wirth is not a fan of it [2][3]). [1]: https://www.research-collection.ethz.ch/handle/20.500.11850/137906 https://www.research-collection.ethz.ch/handle/20.500.11850/... [2]: https://people.inf.ethz.ch/wirth/Articles/LeanSoftware.pdf https://people.inf.ethz.ch/wirth/Articles/LeanSoftware.pdf (PDF) [3]: https://en.wikipedia.org/wiki/Wirth%27s_law https://en.wikipedia.org/wiki/Wirth%27s_law [Edit: corrected reference to Ceres, which was the Lillith successor]