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August 1, 2025
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nov 4, 1838 - 1838 Matthias Schleiden

Description:

In 1838, Matthias Schleiden, a German botanist, concluded that all plant tissues are composed of cells and that an embryonic plant arose from a single cell. He declared that the cell is the basic building block of all plant matter.

Added to timeline:

Date:

nov 4, 1838
Now
~ 186 years ago