In 1590, I, Zacharias Jansen, invented the first microscope, which would later help create the cell theory.
In 1665, I, Robert Hooke, looked at a cork through a microscope and observed that when I looked at a piece of cork through a microscope, the little holes looked like jail cells, so that is why I named them cells.
When, I, Anton van Leeuwenhoek, looked at people's teeth through a microscope, he discovered bacteria.
In this box, it explains that Zacharias Jansen invented the first microscope.
In 1838, I, Matthias Schleiden, concluded that all plants are made of cells, and in 1839, I, Theodore Schwann concluded that all animals are made of cells.
In this box, it explains how the term "cell" came to be.
In 1833, I, Robert Brown, discovered the nucleus in cells.
In this box, it explains how bacteria was discovered. But, when Anton Van Leeuwenhook discovered bacteria, he didn't name them as we know them now, he called them animalcules because he said that they looked like little animals.
In 1850, I, Rudolph Virchow, observed cell division which helped me come to the conclusion that all cells come from pre-existing cells.
In this box, it explains the first part of the cell theory, which states that all organisms are composed of one or more cells.
In this box it tells us a part of the second part of the cell theory, which states that the cell is the basic structure and organization in an organism, and part of that structure is the nucleus.
In this box, it explains the third and final part of the cell theory, which states that all cells come from pre-existing cells. I got most of my information from the cell history timeline which you can find at drive.google.com/file/d/1HC5sw8tQ9wuGmYqEBQEdAcc9lz-d_81i/view