Dr. Janssen and his father were Dutch eye glass makers who invented the microscope.
Robert Hooke named cells after seeing rectangular cells in cork.
Anton Van Leeuwenhuek Discovered Bacteria and made one of the first compound microsopes
In 1838 Mathias Schleiden concluded that all plants have cells.
In 1839, Theodor Schwann Concluded that all tissue have cells.
In 1855, Rudolph Virchow said that All cells are made from preexisting cells.
The Cell Theory was developed:
1. All living things have cells
2. Cells are the basic unit of structure and function of living things
3. All cells are made from other cells