Research
![The observation of a real "Brownian path" due to Brongniart (Annales des Sciences naturelles 15 (1828) 381-401; it pre-dates Robert Brown's paper). The picture shows in 640-fold magnification a pollen grain and its spermatic granules.](https://tu-dresden.de/mn/math/stochastik/schilling/ressourcen/bilder/brongniart.png/@@images/4cb854f9-7ab9-4a7b-8a89-5fa5b53fc3bf.jpeg)
This is one of the earliest pictures of a Brownian path from 1826, pre-dating Robert Brown (Source: A. Brongniart: Memorie sur la Génération et le Developement de l’Embryon dans les végétaux phanerogames. Lu a l’Academie des sciences le 26. Decembre 1826. Annales des sciences naturelles 15 (1828) pp. 381-401, planches 13 & 14)
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René Schilling @