The History of Microscopes and the Cell Theory

Events

The Invention of the Microscope by Zacharias Jenssen

1590

A man named Zacharias Janssen made a first compound microscope in the Netherlands.

The Works of Anton Van Leewenhoek

1650

Anton Van Leewenhoek invented his own microscope and he discovered bacteria by looking at dental scrapings. Instead of calling them bacteria, he called them "Animalcules".

Hooke's Compound Microscope

1660

Robert Hooke's microscope included an oil lamp for lighting. A lens focuses light from the flame onto the specimen.

Robert Hooke Discovers Cells

1665

Hooke was looking at a piece of cork through his microscope. He saw cell walls and said they looked like tiny rectangular rooms.

Matthias Schleiden and Theodor Schwann Discover the First Part of The Cell Theory

1838

Schleiden concluded

Rudolf Virchow Discovers The Third Part of The Cell Theory

1855

VIrchow discovered that all cells come from cells that already exist.