Source A: Excerpt from a modern medical history book

'Thomas Sydenham (1624–1689) was a pioneering English physician during the Renaissance period. He is often called the 'English Hippocrates' because of his emphasis on careful observation and detailed patient descriptions. Sydenham challenged many traditional ideas and promoted the idea that doctors should learn from studying actual patients and their symptoms.'

Source B: A quote from Sydenham himself

'To understand the nature of disease, we must observe the patient closely and record what we see.'

Source C: Modern historian's view

'Sydenham's emphasis on observation and case recording helped move medicine away from superstition and towards a more scientific approach, influencing future doctors.'

Source D: A summary of Sydenham's discoveries

'He identified and described many diseases, including malaria and scarlatina, and improved diagnosis and treatment based on his observations.'