In 1859 Charles Darwin published "On the Origin of Species" in which he proposed that all organisms are related through common ancestry. He proposed that the change that occurred in populations due to natural selection on their variations by the environment.
Evidences that Darwin looked at included:
- Geological
- Fossil
- Comparative Anatomy
- homologous
- analogous
- Selective Breeding
Additional evidences we have the luxury of viewing today include:
- Radiometric Dating
- Genetics & DNA
- Embryological