Alexander Fleming was a Scottish microbiologist and physician. He is credited with discovering penicillin, the world's first effective antibiotic substance; a discovery that changed the course of history. He also discovered lysozyme, an antimicrobial enzyme which forms part of the innate immune system. In 1999, Fleming was named in Time magazine's 100 Most Important People of the 20th century list.
British surgeon Joseph Lister was a pioneer of antiseptic medicine usage and made a huge contribution to the development of preventive medicine for bacterial infection. His achievements have been honored by many, such as the makers of Listerine antiseptic and mouthwash, who named their product after him.
Best known as the father of modern epidemiology, British doctor John Snow revolutionized medical science with his study of London’s Broad Street cholera outbreak of 1854. His research contributed to the development of London’s sewage and water systems and led to the reduction in cholera cases.
Best known for his iconic medical textbook Gray's Anatomy, surgeon Henry Gray, who was a skilled anatomist, was made a Fellow of The Royal Society at the tender age of 25. His untimely death at 34 due to small pox, while treating his nephew, cheated him of an illustrious career.
Not many suspected physician John Bodkin Adams of being a serial killer till it was revealed that his name had appeared in the wills of at least 132 of his patients who had died, while 163 died in coma. Though never convicted of the killings, he faced punishment for forgery.
Nobel Prize-winning British doctor Ronald Ross is best remembered for his pathbreaking work on malaria, which proved that the disease was caused by the Anopheles variant of mosquitoes. After his extensive research in India, he went back to London, where he was knighted. He also wrote poetry and songs.
The first female doctor and surgeon of Britain, Elizabeth Garrett Anderson was initially denied admission to medical schools because of her gender and had thus started studying privately. Soon after joining the Marylebone Dispensary as an attendant, she contributed to the formation of the New Hospital for Women.
Hudson Taylor was one of the most popular Christian missionaries in China. His 51-year stint in China witnessed him baptizing over 50,000 people. Apart from converting people, he also mingled with the Chinese at a personal level, adopting their clothing habits, contrary to what other missionaries practiced.
Havelock Ellis co-wrote the first English textbook on homosexuality. Initially a teacher in Australia, he later moved to London to study medicine. His seven-part Studies in the Psychology of Sex is a first-of-its-kind study on human sexuality. He also believed in eugenics and the importance of smell in sexual behavior.
Born in Germany, neurosurgeon Ludwig Guttmann fled the country during the Nazi regime and later settled in the UK. What started as his effort to rehabilitate injured soldiers, materialized into the launch of the Paralympic Games to encourage sports among the disabled. He also worked extensively on paraplegia.
Thomas Neill Cream, or the Lambeth Poisoner, was a Scottish-Canadian doctor who offered illegal abortions to sex workers in Chicago. He was later executing for poisoning scores of women and blackmailing others for their murders. It is believed he had claimed to be Jack the Ripper just before his execution.
12 Wilfred Bion
Born in British India, Wilfred Bion grew up to be a prominent psychoanalyst. He had fought during World War I. He is best remembered for his work on group dynamics and the object relations theory. He was also part of the Tavistock group of psychologists who founded the Tavistock Institute.
British doctor John Langdon Down was pushed to assist at his father’s shop at 14. He gained an interest in medicine after apprenticing with a London surgeon. A pioneer in the treatment of mentally challenged patients, he is remembered for his study of what is now known as Down syndrome.
Part of the renowned Mayo family of doctors of the U.S., William Worrall Mayo played a key role in establishing the Mayo Clinic. He and his two sons built the St. Mary’s Hospital, along with the Sisters of St. Francis, after the deadly tornado of 1883 destroyed Rochester.
15 Axel Munthe
17 William Farr
18 Charles Bell
Charles Bell was a Scottish surgeon, physiologist, anatomist, and neurologist. He was also an artist and philosophical theologian. He discovered the difference between sensory nerves and motor nerves in the spinal cord. He is also known for describing Bell's palsy. He played a key role in the creation of the Middlesex Hospital Medical School.
Physician William Palmer, also known as Palmer the Poisoner, was hanged in public for the murder of his friend John Cook. He had apparently poisoned Cook with strychnine and had also killed several others, eventually gaining from their insurance. He has been loosely referred to in many literary works.
English anthropologist and psychologist W. H. R. Rivers is best remembered for his work on the Todas of the Nilgiri Hills. A qualified physician, he also taught at Cambridge and worked extensively on medical psychology. One of his best-known works is Kinship and Social Organisation.
21 William Gull
British-American William Thornton was initially trained in medicine and that is when he began drawing and sketching as part of his medical notes. He later won a contest for the design of the Library Company of Philadelphia's new hall. He also designed the Capitol in Washington, D.C.
24 Edward Bach
George Crabbe was an English surgeon, poet, and clergyman. He began his career as a doctor's apprentice in the 1770s and later become a surgeon. After a few years, he pursued a living as a poet and also served as a clergyman in various capacities. He wrote poetry mainly in the form of heroic couplets. He was also a coleopterist.
English medical missionary to Newfoundland Sir Wilfred Thomason Grenfell KCMG, is noted for his years of service to the people of the colony. His relentless efforts in such pursuit led him to form the philanthropic organization Grenfell Mission and the International Grenfell Association to provide different services, including medical, social, educational, religious, and rehabilitation to the people there.
29 Henry Faulds
30 James Paget
Political scientist and Fabian Society leader Graham Wallas is best known for his iconic work Human Nature in Politics. He contributed to the development of the London School of Economics and was one of its first professors. He also proposed one of the first models of the creative process.
John Hughlings Jackson was an English neurologist best known for his research on epilepsy. He attended the York Medical and Surgical School and became the house physician to the York Dispensary. He later established his reputation as a neurologist and was elected a Fellow of the Royal Society. He was one of the founders of the important journal Brain.