Organic Evolution

1. Evolution is a slow continuous, irreversible and natural process of change to give rise to advance and diverse forms of life i.e. formation of new species.
2. The ancient Indian Literature like Ayurveda deals with origin of life; Manu Samhita mentions about evolution.
3. The ancient Greek thoughts (2000 yrs before Darwin) like of Plato (428 - 348 BC) believed species as unchanging ideal form (eidos)
4. Aristotle (384 - 322 BC) also believed in fixitiveness of species like Plato but extended his ideas of diversity in a chain or ladder like series progressing from most imperfect to most perfect.
5. He named it as "Ladder of Nature" or "Scala Naturae" or "Great chain of Being"
6. Darwin (1859) termed it as the "descent with modification" .
7. Dobzhansky (1973) said "nothing in Biology makes sense except in the light of evolution".
8. Empedocles - Founder of concept of evolution.
9. Buffon - Father of evolutionary concept.
10. Spencer - Coined the term evolution.