History of Cell Theory
- For 2000 years: life happens (maggots, mice in rags, snow geese).
- Redi (Italy 1668): maggots are fly larvae.
- Spallanzani (Italy 18th century): sealed flask of broth doesn't grow microbes.
- Pasteur (France 1862): swan-necked flask doesn't grow microbes.
What Technology Hast Wrought
- Anton van Leeuwenhoek (Netherlands 17th century): discovers microbes.
- Robert Hooke (England 1665): describes and names cells.
- Matthias Schleiden and Theodor Schwann (Germany 1839): all organisms made of cells.
- Rudolf Virchow (Germany 1858): all cells come from cells.
Modern Cell theory
- Cells are basic unit of life.
- All organisms are made of cells.
- Cells come from cells.