Template:Shumway1935 table1
From Embryology
| Embryology in the classic period | |||||
| 4th century B.C. | Aristotle | ||||
| Embryology in the Renaissance period | |||||
| (Before the general use of the microscope) | 1651 | Harvey | Epigenesis | ||
| (After the general use of the microscope) | |||||
| 1672 | Malpighi | Preformation | |||
| 1768 | Wolff | Epigenesis | |||
| Embryology in modern times | |||||
| 1839 | von Baer | Comparative embryology | |||
| 1839 | (Schleiden and Schwann announced cell theory) | ||||
| 1859 | (Darwin announced theory of natural selection) | ||||
| 1866 | Haeckel | Biogenetic law | |||
| 1866 | (Mendel announced laws of inheritance) | ||||
| (Microscopic technique being developed) | |||||
| 1874 | His | Experimental embryology | |||
| 1878 | Whitman | Cell lineage | |||
| 1883 | Roux | Mechanics of development | |||
| 1891 | Weismann | Theory of the germplasm | |||
| 1899 | Loeb | Artificial parthenogenesis | 1900 | (Rediscovery of Mendel’s laws) | |
