The document discusses several important figures in the history of taxonomy, including Aristotle, who is considered the father of biology; Theophrastus, who is considered the father of botany and classified plants into annuals, biennials, and perennials; John Ray, who recorded over 18,000 plants in his book Historia Generalis Plantarum and first used the term "species"; and Carl Linnaeus, who is considered the father of modern taxonomy and proposed the binomial nomenclature system and taxonomic hierarchy.

2. ARISTOTLE (Greece)
• Father of Biology.
• Classified organisms as those
with RBCs and those without
RBCs.
• B.C. 384 - 322

3. THEOPHRASTUS (Greece)
• Father of Botany.
• Classified plants in to annuals,
biennials and perennials.
• B.C. 371 - 287

4. CHARAKAN (India)
• Father of Ayurveda.
• Wrote the treatise Charaka
Samhita by including in it
around 200 plants and animals.
• A.D 1st century

5. JOHN RAY (England)
• Recorded more than 18000 plants in
the book Historia Generalis
Plantarum.
• Used the term Species for the first
time.
• A.D. 1627 - 1705

6. CARL LINNAEUS (Sweden)
• Father of Modern Taxonomy.
• Suggested the taxonomic hierarchy.
• Proposed binomial nomenclature.
• A.D. 1707 - 1778

7. A quick view
• Aristotle : father of biology
• Theophrastus : father of botany
• Charakan : father of Ayurveda
• John ray : classified 18000 plants
and recorded in his book “Historia
Generalis Planterum”
• Carl Linnaeous : father of modern
taxonomy

8. Review
• Who is considered as the father of biology?
• Who classified plants in to annuals, biennials
and perennials?
• What is the book written by John Ray?
• Who is considered as the father of botany?

9. Contd....
• What is the contribution of Charaka in
the history of taxonomy?
• Who introduced the term ‘species’?
• Who is considered as the father of
modern taxonomy?
• Who proposed the binomial
nomenclature system ?

10. Follow up activity
• Collect the pictures of the eminent
scientists who have made
contribution valuable contributions
to the history of taxonomy.
• Write a brief note about the
contribution of the above
mentioned scientists.