William Osler

As a founding professor at Johns Hopkins Hospital, Osler introduced the revolutionary concept of bedside clinical training. Before this, medical education was almost entirely classroom-based, but Osler insisted students must interact directly with patients early in their training. He is also credited with establishing the modern medical residency program, where young doctors live and train at the hospital.

Osler authored The Principles and Practice of Medicine in 1892. The textbook was a monumental success, providing a comprehensive, scientifically grounded overview of internal medicine. It went through numerous editions and remained the standard text in medical schools across North America for decades.

Yes, Osler was recruited to Baltimore in 1889 as one of the four foundational physicians of the Johns Hopkins Hospital, alongside William Halsted, William Welch, and Howard Kelly. The 'Big Four,' as they were known, established Johns Hopkins as the premier model for modern medical education. They transformed how medicine was taught, researched, and practiced in the 20th century.

No, though he was born in Canada and worked in the US, Osler left Johns Hopkins in 1905. He moved to England to become the Regius Professor of Medicine at Oxford University. He spent the rest of his life at Oxford, where he was made a baronet in 1911.