3 h 3 m, 1 jan 1838 ano - In 1838, one of his friends,
the botanist Matthias Schleiden,
published an article discussing
the structure and origin of plant
cells and theorized that all plant
cells share a common structure
and that new plant cells form
from the nuclei of old plant cells.
This article made Schwann
wonder if this could be true for
animal cells as well.