The Botanical Garden

**Because they turned plant knowledge from the copying of texts into direct observation — the foundation of modern biology.** ✅ **The problem before**: European medicine relied on **ancient texts** — **Dioscorides** above all — **describing plants in words and in drawings copied from copies** across centuries. ⚠ **The practical result was disastrous**: **descriptions were vague**, **drawings distorted by repeated copying**, **names varied between regions**, ⚠ **so an apothecary erred and a patient died** — **and many medicinal plants are poisonous at a slightly higher dose**. ✅ **What the garden did**: **it gathered living plants in one place, classified and named** — **so a student saw, touched and smelled** rather than reading a description. **And two similar plants could be compared side by side.** ✅ **The wider effect**: **when the plants of the whole world are grown in one place** — and Padua received plants from the East and the Americas through Venetian trade — **systematic comparison becomes possible**; **from which botanical classification arose**, and then the idea that living things fall into groups. ⚠ **Padua introduced plants to Europe**: it is credited with an early part in **the sunflower, jasmine and the potato**.