Hi all,
I don't know where else on this site I could submit this, but I think that Anton Pannekoek should also be categorized in the "Notable Activists and Revolutionaries" category as well. His life as a revolutionary (and perhaps also a Marxist theorist? Then maybe "Notable Philosophers and Thinkers" could apply too) can be read in
https://science.thewire.in/politics/anton-pannekoek-historical-materialism-marxism-trade-unions-astronomy/.
Thank you!