The last history people here gave me had him describing the joy of programming in the safe, fast Oberon-2. And wanting to re-create that with the new language. Resulting language is very Wirth-like in style, esp simplicity, compile speed focus, and safety. Modified with C syntax, concurrency from Limbo, and I dont recall what else. Clearly way closer to Oberon-2 or Modula's than to BCPL like C copied/extended.
I definitely "feel" the Limbo influence, but I've not worked with Oberon-2 (only the original Oberon, and only a bit), so I didn't pick up on it. I do "feel" the C influence as well, though.