The Evolution Of Cell Theory

1st Compound MIcroscope

Oct 23, 1595

in 15895, Hans an Zacharias Janssen, father and son, created the first compound microscope by combining 2 convex lenses within a tube. This led to opportunities for others to study cells more.

Cellular Cork Composition

Oct 23, 1665

In 1665, Robert Hooke discovered and discussed the cellular composition of cork, and durig the process introduced the word ¨cell¨ to the world.

Lense Magnification

Oct 23, 1674

Anton van Leewuenhoek improved the magnification of microscopes by polishing lensses. This led to being able to study cells and other animacules more closely.

Animacule discovery

Oct 23, 1676

Anton van Leeuwenhoek discovered ¨animacules¨ - microscopic animals or protozoans in 1676. A big step in studying biology.

Bacteria Discovery

Oct 23, 1683

Anton van Leeuwenhoek also discovered bacteria while studying a sample of saliva from his mouth in 1683.

Cell Nucleus Discovery

Oct 23, 1833

Robert Brown, a botanist, discovered and explained the cell nucleus in 1833 while studying plants.

Plants Made of Cells

Oct 23, 1838

In 1838 Matthias Scheiden discovered that plants are made up of cells.

Animals and their Cells

Oct 23, 1839

Theodore Schwann discovered animals were made of cells after the doscovery that platns were made of cells.

Cells Basic Unit Of Life

Oct 23, 1845

Carl Heinrich Braun identified cells as the basic unit of life.

All Cells Come From Other Cells

Oct 23, 1855

RUdolph Vichrow stated that ¨all cells arise from another cell¨ which is so important becayse it is one of the main concepts of cell theory in 1855