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Before the development of germ theory and the discovery of bacteria and viruses, medicine relied on ancient theories that often caused more harm than good. Without modern knowledge, doctors had often used dangerous procedures or had performed surgery without washing their hands. 

Today I want to talk about medicine before the discovery of germ theory. In order to talk about this topic, or other events that have happened in the past, we need to understand and know how to use the past perfect tense. 

Let’s practise the past perfect and learn about the history of medicine!

TRANSCRIPT - https://thinkinginenglish.blog/2024/12/16/medicine-before-the-discovery-of-germs-past-perfect-english-grammar-lesson/

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