History of medicine

Source: Wikipedia, the free encyclopedia.

A 12th-century manuscript of the Hippocratic Oath in Greek, one of the most famous aspects of classical medicine that carried into later eras

The history of medicine is both a study of medicine throughout history as well as a multidisciplinary field of study that seeks to explore and understand medical practices, both past and present, throughout human societies.[1]

The history of medicine is the study and documentation of the evolution of medical treatments, practices, and knowledge over time. Medical historians often drawn from other humanities fields of study including economics, health sciences, sociology, and politics to better understand the institutions, practices, people, professions, and social systems that have shaped medicine. When a period which predates or lacks written sources regarding medicine, information is instead drawn from archaeological sources.[1][2] This field tracks the evolution of human societies' approach to health, illness, and injury ranging from prehistory to the modern day, the events that shape these approaches, and their impact on populations.

Early medical traditions include

China, Egypt and India
.

Invention of the microscope was a consequence of improved understanding, during the Renaissance. Prior to the 19th century,

modern medicine
. Medicine was heavily professionalized in the 20th century, and new careers opened to women as nurses (from the 1870s) and as physicians (especially after 1970).

Prehistoric medicine

Yarrow, a medicinal plant found in human-occupied caves in the Upper Palaeolithic period.[3]

Prehistoric medicine is a field of study focused on understanding the use of medicinal plants, healing practices, illnesses, and wellness of humans before written records existed.[4] Although styled prehistoric "medicine", prehistoric healthcare practices were vastly different from what we understand medicine to be in the present era and more accurately refers to studies and exploration of early healing practices.

This period extends across the first use of stone tools by early humans c. 3.3 million years ago[5] to the beginning of writing systems and subsequent recorded history c. 5000 years ago.

As human populations were once scattered across the world, forming isolated communities and cultures that sporadically interacted, a range of archaeological periods have been developed to account for the differing contexts of technology, sociocultural developments, and uptake of writing systems throughout early human societies.[6][7] Prehistoric medicine is then highly contextual to the location and people in question,[8] creating an ununiform period of study to reflect various degrees of societal development.

Without written records, insights into prehistoric medicine comes indirectly from interpreting evidence left behind by prehistoric humans. One branch of this includes the archaeology of medicine; a discipline that utilises a range of archaeological techniques from observing illness in human remains, plant fossils, to excavations to uncover medical practices.[3][9] There is evidence of healing practices within Neanderthals[10] and other early human species. Prehistoric evidence of human engagement with medicine include the discovery of psychoactive plant sources such as psilocybin mushrooms in c. 6000 BCE Sahara[11] to primitive dental care in c. 10,900 BCE (13,000 BP) Riparo Fredian[12] (present-day Italy)[13] and c. 7000 BCE Mehrgarh (present-day Pakistan).[14][15]

Anthropology is another academic branch that contributes to understanding prehistoric medicine in uncovering the sociocultural relationships, meaning, and interpretation of prehistoric evidence.[16] The overlap of medicine as both a root to healing the body as well as the spiritual throughout prehistoric periods highlights the multiple purposes that healing practices and plants could potentially have.[17][18][19] From proto-religions to developed spiritual systems, relationships of humans and supernatural entities, from Gods to shamans, have played an interwoven part in prehistoric medicine.[20][21]

Ancient medicine

Ancient history covers time between c. 3000 BCE to c. 500 CE, starting from evidenced development of writing systems to the end of the classical era and beginning of the post-classical period. This periodisation presents history as if it were the same everywhere, however it is important to note that socioculture and technological developments could differ locally from settlement to settlement as well as globally from one society to the next.[22]

Ancient medicine covers a similar period of time and presented a range of similar healing theories from across the world connecting nature, religion, and humans within ideas of circulating fluids and energy.[23] Although prominent scholars and texts detailed well-defined medicial insights, their real-world applications were marred by knowledge destruction and loss,[24] poor communication, localised reinterpretations, and subsequent inconsistent applications.[25]

Ancient Mesopotamian medicine

Akkadians (including Assyrians and Babylonians). Overlapping ideas of what we now understand as medicine, science, magic, and religion characterised early Mesopotamian healing practices as a hybrid naturalistic and supernatural belief system.[28][29][30]

The

3rd millennium BCE, created numerous cuneiform clay tablets regarding their civilisation included detailed accounts of drug prescriptions, operations, to exorcisms. These were administered and carried out by highly defined professionals including bârû (seers), âs[h]ipu (exorcists), and asû (physician-priests).[31] An example of an early, prescription-like medication appeared in Sumerian during the Third Dynasty of Ur (c. 2112 BCE – c. 2004 BCE).[32]

Following the conquest of the

Babylonian medicine include the extensive Babylonian medical text, the Diagnostic Handbook, written by the ummânū, or chief scholar, Esagil-kin-apli of Borsippa,[34]: 99 [35] in the middle of the 11th century BCE during the reign of the Babylonian king Adad-apla-iddina (1069–1046 BCE).[36]

This medical treatise presented great attention to the practice of diagnosis, prognosis, physical examination, and remedies. The text contains a list of medical symptoms and often detailed empirical observations along with logical rules used in combining observed symptoms on the body of a patient with its diagnosis and prognosis.[34]: 97–98  Here, clearly developed rationales were developed to understand the causes of disease and injury, supported by agreed upon theories at-the-time of elements we might now understand as natural causes, supernatural magic and religious explanations.[35]

A Neo-Assyrian cuneiform tablet fragment describing a medical text (c. 9th to 7th century BCE).
A Neo-Assyrian cuneiform tablet fragment describing medical text (c. 9th to 7th century BCE).

Most known and recovered artefacts from the ancient Mesopotamian civilisations centre on the neo-Assyrian (c. 900 - 600 BCE) and neo-Babylonian (c. 600 - 500 BCE) periods, as the last empires ruled by native Mesopotamian rulers.[37] These discoveries include a huge array of medical clay tablets from this period, although damage to the clay documents creates large gaps in our understanding of medical practices.[38]

Throughout the civilisations of Mesopotamia there is a wide range of medical innovations including evidenced practices of

prophylaxis, taking measures to prevent the spread of disease,[28] accounts of stroke,[citation needed] to an awareness of mental illnesses.[39]

Ancient Egyptian medicine

Magical stela or cippus of Horus inscribed with healing encantations (c. 332 to 280 BCE).
Magical stela or cippus of Horus inscribed with healing encantations (c. 332 to 280 BCE).

Ancient Egypt, a civilisation spanning across the river Nile (throughout parts of present-day Egypt, Sudan, and South Sudan), existed from its unification in c. 3150 BCE to its collapse via Persian conquest in 525 BCE[40] and ultimate downfall from the conquest of Alexander the Great in 332 BCE.

Throughout unique dynasties, golden eras, and intermediate periods of instability, ancient Egyptians developed a complex, experimental, and communicative medical tradition that has been uncovered through surviving documents, most made of papyrus, such as the Kahun Gynaecological Papyrus, the Edwin Smith Papyrus, the Ebers Papyrus, the London Medical Papyrus, to the Greek Magical Papyri.[41]

public health system that they possessed. According to him, "the practice of medicine is so specialized among them that each physician is a healer of one disease and no more." Although Egyptian medicine, to a considerable extent, dealt with the supernatural,[43]
it eventually developed a practical use in the fields of anatomy, public health, and clinical diagnostics.

Medical information in the

Edwin Smith Surgical Papyrus, written in the 17th century BCE, contains the earliest recorded reference to the brain. New York Academy of Medicine
.

The Kahun Gynaecological Papyrus[46] treats women's complaints, including problems with conception. Thirty four cases detailing diagnosis and[47] treatment survive, some of them fragmentarily.[48] Dating to 1800 BCE, it is the oldest surviving medical text of any kind.

Medical institutions, referred to as Houses of Life are known to have been established in ancient Egypt as early as 2200 BCE.[49]

The Ebers Papyrus is the oldest written text mentioning enemas. Many medications were administered by enemas and one of the many types of medical specialists was an Iri, the Shepherd of the Anus.[50]

The earliest known physician is also credited to

4th dynasty. Her title was "Lady Overseer of the Lady Physicians."[52]

Ancient Chinese medicine

Eastern Han
dynasty.

Medical and healing practices in early Chinese dynasties were heavily shaped by the practice of traditional Chinese medicine (TCM). Starting around the Zhou Dynasty, parts of this system were being developed and are demonstrated in early writings on herbs in Classic of Changes (Yi Jing) and Classic of Poetry (Shi Jing).[53][54]

China also developed a large body of traditional medicine. Much of the philosophy of

Taoist
physicians and reflects the classical Chinese belief that individual human experiences express causative principles effective in the environment at all scales. These causative principles, whether material, essential, or mystical, correlate as the expression of the natural order of the universe.

The foundational text of Chinese medicine is the

Jin dynasty practitioner and advocate of acupuncture and moxibustion, Huangfu Mi (215–282), also quotes the Yellow Emperor in his Jiayi jing, c. 265. During the Tang dynasty, the Suwen was expanded and revised and is now the best extant representation of the foundational roots of traditional Chinese medicine. Traditional Chinese medicine
that is based on the use of herbal medicine, acupuncture, massage and other forms of therapy has been practiced in China for thousands of years.

Ancient Indian medicine

Portrait of Susruta, the author of the he Suśrutasamhitā which describes procedures on various forms of surgery, including rhinoplasty,

The

Early Iron Age, is one of the first Indian texts dealing with medicine. The Atharvaveda also contains prescriptions of herbs for various ailments. The use of herbs to treat ailments would later form a large part of Ayurveda
.

Ayurveda, meaning the "complete knowledge for long life" is another medical system of India. Its two most famous texts belong to the schools of

Buddha and others.[56]

According to the compendium of Charaka, the Charakasamhitā, health and disease are not predetermined and life may be prolonged by human effort. The compendium of Suśruta, the Suśrutasamhitā defines the purpose of medicine to cure the diseases of the sick, protect the healthy, and to prolong life. Both these ancient compendia include details of the examination, diagnosis, treatment, and prognosis of numerous ailments. The Suśrutasamhitā is notable for describing procedures on various forms of surgery, including rhinoplasty, the repair of torn ear lobes, perineal lithotomy, cataract surgery, and several other excisions and other surgical procedures. Most remarkable was Susruta's surgery specially the rhinoplasty for which he is called father of modern plastic surgery. Susruta also described more than 125 surgical instruments in detail. Also remarkable is Sushruta's penchant for scientific classification: His medical treatise consists of 184 chapters, 1,120 conditions are listed, including injuries and illnesses relating to aging and mental illness.

The Ayurvedic classics mention eight branches of medicine: kāyācikitsā (

alkalis
. The teaching of various subjects was done during the instruction of relevant clinical subjects. For example, the teaching of anatomy was a part of the teaching of surgery, embryology was a part of training in pediatrics and obstetrics, and the knowledge of physiology and pathology was interwoven in the teaching of all the clinical disciplines. The normal length of the student's training appears to have been seven years. But the physician was to continue to learn.[57]

Ancient Greek medicine

Humors

The theory of humors was derived from ancient medical works, dominated Western medicine until the 19th century, and is credited to Greek philosopher and surgeon Galen of Pergamon (129–c. 216 CE).[58] In Greek medicine, there are thought to be four humors, or bodily fluids that are linked to illness: blood, phlegm, yellow bile, and black bile.[59] Early scientists believed that food is digested into blood, muscle, and bones, while the humors that weren't blood were then formed by indigestible materials that are left over. An excess or shortage of any one of the four humors is theorized to cause an imbalance that results in sickness; the aforementioned statement was hypothesized by sources before Hippocrates.[59] Hippocrates (c. 400 BCE) deduced that the four seasons of the year and four ages of man that affect the body in relation to the humors.[58] The four ages of man are childhood, youth, prime age, and old age.[59] The four humors as associated with the four seasons are black bile – autumn, yellow bile – summer, phlegm – winter and blood – spring.[60]

In De temperamentis, Galen linked what he called temperaments, or personality characteristics, to a person's natural mixture of humors. He also said that the best place to check the balance of temperaments was in the palm of the hand. A person that is considered to be phlegmatic is said to be an introvert, even-tempered, calm, and peaceful.[59] This person would have an excess of phlegm, which is described as a viscous substance or mucous.[61] Similarly, a melancholic temperament related to being moody, anxious, depressed, introverted, and pessimistic.[59] A melancholic temperament is caused by an excess of black bile, which is sedimentary and dark in colour.[61] Being extroverted, talkative, easygoing, carefree, and sociable coincides with a sanguine temperament, which is linked to too much blood.[59] Finally, a choleric temperament is related to too much yellow bile, which is actually red in colour and has the texture of foam; it is associated with being aggressive, excitable, impulsive, and also extroverted.

There are numerous ways to treat a disproportion of the humors. For example, if someone was suspected to have too much blood, then the physician would perform bloodletting as a treatment. Likewise, if a person that had too much phlegm would feel better after expectorating, and someone with too much yellow bile would purge.[61] Another factor to be considered in the balance of humors is the quality of air in which one resides, such as the climate and elevation. Also, the standard of food and drink, balance of sleeping and waking, exercise and rest, retention and evacuation are important. Moods such as anger, sadness, joy, and love can affect the balance. During that time, the importance of balance was demonstrated by the fact that women lose blood monthly during menstruation, and have a lesser occurrence of gout, arthritis, and epilepsy then men do.[61] Galen also hypothesized that there are three faculties. The natural faculty affects growth and reproduction and is produced in the liver. Animal or vital faculty controls respiration and emotion, coming from the heart. In the brain, the psychic faculty commands the senses and thought.[61] The structure of bodily functions is related to the humors as well. Greek physicians understood that food was cooked in the stomach; this is where the nutrients are extracted. The best, most potent and pure nutrients from food are reserved for blood, which is produced in the liver and carried through veins to organs. Blood enhanced with pneuma, which means wind or breath, is carried by the arteries.[59] The path that blood take is as follows: venous blood passes through the vena cava and is moved into the right ventricle of the heart; then, the pulmonary artery takes it to the lungs.[61] Later, the pulmonary vein then mixes air from the lungs with blood to form arterial blood, which has different observable characteristics.[59] After leaving the liver, half of the yellow bile that is produced travels to the blood, while the other half travels to the gallbladder. Similarly, half of the black bile produced gets mixed in with blood, and the other half is used by the spleen.[61]

People

Around 800 BCE

Eurypylus asks Patroclus to "cut out the arrow-head, and wash the dark blood from my thigh with warm water, and sprinkle soothing herbs with power to heal on my wound".[62] Asklepios, like Imhotep
, came to be associated as a god of healing over time.

View of the Askleipion of Kos, the best preserved instance of an Asklepieion.

Temples dedicated to the healer-god

Ancient Greek: Ἀσκληπιεῖα, sing. Ἀσκληπιεῖον, Asclepieion), functioned as centers of medical advice, prognosis, and healing.[63] At these shrines, patients would enter a dream-like state of induced sleep known as enkoimesis (ἐγκοίμησις) not unlike anesthesia, in which they either received guidance from the deity in a dream or were cured by surgery.[64] Asclepeia provided carefully controlled spaces conducive to healing and fulfilled several of the requirements of institutions created for healing.[63] In the Asclepeion of Epidaurus, three large marble boards dated to 350 BCE preserve the names, case histories, complaints, and cures of about 70 patients who came to the temple with a problem and shed it there. Some of the surgical cures listed, such as the opening of an abdominal abscess or the removal of traumatic foreign material, are realistic enough to have taken place, but with the patient in a state of enkoimesis induced with the help of soporific substances such as opium.[64] Alcmaeon of Croton wrote on medicine between 500 and 450 BCE. He argued that channels linked the sensory organs to the brain, and it is possible that he discovered one type of channel, the optic nerves, by dissection.[65]

Hippocrates of Kos (c. 460 – c. 370 BCE), considered the "father of modern medicine."[66] The Hippocratic Corpus is a collection of around seventy early medical works from ancient Greece strongly associated with Hippocrates and his students. Most famously, the Hippocratics invented the Hippocratic Oath for physicians. Contemporary physicians swear an oath of office which includes aspects found in early editions of the Hippocratic Oath.

paroxysm, peak, and convalescence."[70][71]

The Greek Galen (c. 129–216 CE) was one of the greatest physicians of the ancient world, as his theories dominated all medical studies for nearly 1500 years.[72] His theories and experimentation laid the foundation for modern medicine surrounding the heart and blood. Galen's influence and innovations in medicine can be attributed to the experiments he conducted, which were unlike any other medical experiments of his time. Galen strongly believed that medical dissection was one of the essential procedures in truly understanding medicine. He began to dissect different animals that were anatomically similar to humans, which allowed him to learn more about the internal organs and extrapolate the surgical studies to the human body.[72] In addition, he performed many audacious operations—including brain and eye surgeries—that were not tried again for almost two millennia. Through the dissections and surgical procedures, Galen concluded that blood is able to circulate throughout the human body, and the heart is most similar to the human soul.[72][73] In Ars medica ("Arts of Medicine"), he further explains the mental properties in terms of specific mixtures of the bodily organs.[74][75] While much of his work surrounded the physical anatomy, he also worked heavily in humoral physiology.

Galen's medical work was regarded as authoritative until well into the Middle Ages. He left a physiological model of the human body that became the mainstay of the medieval physician's university anatomy curriculum. Although he attempted to extrapolate the animal dissections towards the model of the human body, some of Galen's theories were incorrect. This caused his model to suffer greatly from stasis and intellectual stagnation.[76] Greek and Roman taboos caused dissection of the human body to usually be banned in ancient times, but in the Middle Ages it changed.[77][78]

In 1523 Galen's On the Natural Faculties was published in London. In the 1530s Belgian anatomist and physician

De humani corporis fabrica
was greatly influenced by Galenic writing and form.

  • Hippocrates (c. 460–370 BCE). Known as the "father of medicine".
    Hippocrates (c. 460–370 BCE). Known as the "father of medicine".
  • Galen (129–216 CE), known for his wide insights into anatomy.
    Galen (129–216 CE), known for his wide insights into anatomy.

Herophilus and Erasistratus

jaw. These writings were preserved in one of Oribasius' collections.[79]

Two great

anaesthetic. Some of what we know of them comes from Celsus and Galen of Pergamum.[81]

Herophilus of Chalcedon, the renowned Alexandrian physician, was one of the pioneers of human anatomy. Though his knowledge of the anatomical structure of the human body was vast, he specialized in the aspects of neural anatomy.[82] Thus, his experimentation was centered around the anatomical composition of the blood-vascular system and the pulsations that can be analyzed from the system.[82] Furthermore, the surgical experimentation he administered caused him to become very prominent throughout the field of medicine, as he was one of the first physicians to initiate the exploration and dissection of the human body.[83]

The banned practice of human dissection was lifted during his time within the scholastic community. This brief moment in the history of Greek medicine allowed him to further study the brain, which he believed was the core of the nervous system.[83] He also distinguished between veins and arteries, noting that the latter pulse and the former do not. Thus, while working at the medical school of Alexandria, Herophilus placed intelligence in the brain based on his surgical exploration of the body, and he connected the nervous system to motion and sensation. In addition, he and his contemporary, Erasistratus of Chios, continued to research the role of veins and nerves. After conducting extensive research, the two Alexandrians mapped out the course of the veins and nerves across the human body. Erasistratus connected the increased complexity of the surface of the human brain compared to other animals to its superior intelligence. He sometimes employed experiments to further his research, at one time repeatedly weighing a caged bird, and noting its weight loss between feeding times.[84] In Erasistratus' physiology, air enters the body, is then drawn by the lungs into the heart, where it is transformed into vital spirit, and is then pumped by the arteries throughout the body. Some of this vital spirit reaches the brain, where it is transformed into animal spirit, which is then distributed by the nerves.[84]

Ancient Roman medicine

The

speculas.[86][87] Romans also performed cataract surgery.[88]

The Roman army physician

De Materia Medica describing over 600 herbal cures, forming an influential pharmacopoeia which was used extensively for the following 1,500 years.[89]

Early Christians in the Roman Empire incorporated medicine into their theology, ritual practices, and metaphors.[90]

Post-classical medicine

Mandrake (written 'ΜΑΝΔΡΑΓΟΡΑ' in Greek capitals). Naples Dioscurides, 7th century

Middle East

Places

Byzantine medicine

Byzantine medicine encompasses the common medical practices of the

Islamic medicine
as well as fostering the Western rebirth of medicine during the Renaissance.

Byzantine physicians often compiled and standardized medical knowledge into textbooks. Their records tended to include both diagnostic explanations and technical drawings. The

Medical Compendium in Seven Books, written by the leading physician Paul of Aegina, survived as a particularly thorough source of medical knowledge. This compendium, written in the late seventh century
, remained in use as a standard textbook for the following 800 years.

Late antiquity ushered in a revolution in medical science, and historical records often mention civilian hospitals (although battlefield medicine and wartime triage were recorded well before Imperial Rome). Constantinople stood out as a center of medicine during the Middle Ages, which was aided by its crossroads location, wealth, and accumulated knowledge.

The first ever known example of separating conjoined twins occurred in the Byzantine Empire in the 10th century. The next example of separating conjoined twins would be recorded many centuries later in Germany in 1689.[91][92]

The Byzantine Empire's neighbors, the Persian Sassanid Empire, also made their noteworthy contributions mainly with the establishment of the Academy of Gondeshapur, which was "the most important medical center of the ancient world during the 6th and 7th centuries."[93] In addition, Cyril Elgood, British physician and a historian of medicine in Persia, commented that thanks to medical centers like the Academy of Gondeshapur, "to a very large extent, the credit for the whole hospital system must be given to Persia."[94]

Islamic medicine

Muhammad ibn Zakariya al-Razi

The Islamic civilization rose to primacy in medical science as its physicians contributed significantly to the field of medicine, including anatomy, ophthalmology, pharmacology, pharmacy, physiology, and surgery. Islamic civilization's contribution to these fields within medicine was a gradual process that took hundreds of years. During the time of the first great Muslim dynasty, the Umayyad Caliphate (661-750 CE), these fields that were in their very early stages of development, and not much progress was made.[95] One reason for the limited advancement in medicine during the Umayyad Caliphate was the Caliphate's focus on expansion after the death of Muhammad (632 CE).[96] The focus on expansionism redirected resources from other fields, such as medicine. The priority on these factors led a dense amount of the population to believe that God will provide cures for their illnesses and diseases because of the attention on spirituality.[96]

There were also many other areas of interest during that time before there was a rising interest in the field of medicine. Abd al-Malik ibn Marwan, the fifth caliph of the Umayyad, developed governmental administration, adopted Arabic as the main language, and focused on many other areas.[97] However, this rising interest in Islamic medicine grew significantly when the Abbasid Caliphate (750-1258 CE) overthrew the Umayyad Caliphate in 750 CE.[98] This change in dynasty from the Umayyad Caliphate to the Abbasid Caliphate served as a turning point towards scientific and medical developments. A large contributor to this was that under Abbasid rule there much of the Greek legacy was transmitted into Arabic which by then, was the main language of Islamic nations.[96] Because of this, many Islamic physicians were heavily influenced by the works of Greek scholars of Alexandria and Egypt and were able to further expand on those texts to produce new medical pieces of knowledge.[99] This period of time is also known as the Islamic Golden Age where there was a period of development for development and flourishments of technology, commerce, and sciences including medicine. Additionally, during this time the creation of the first Islamic Hospital in 805 CE by the Abbasid caliph Harun al-Rashid in Baghdad was recounted as a glorious event of the Golden Age.[95] This hospital in Baghdad contributed immensely to Baghdad's success and also provided educational opportunities for Islamic physicians. During the Islamic Golden Age, there were many famous Islamic physicians that paved the way for medical advancements and understandings. However, this would not be possible without the influence from many different areas of the world that influenced the Arabs.

Arabic manuscript, Anatomy of the Eye, by al-Mutadibih, 1200 CE

The Arabs were influenced by ancient Indian, Persian, Greek, Roman and Byzantine medical practices, and helped them develop further.

Islamic medicine.[108] Some volumes of al-Rāzi's work Al-Mansuri, namely "On Surgery" and "A General Book on Therapy", became part of the medical curriculum in European universities.[109] Additionally, he has been described as a doctor's doctor,[110] the father of pediatrics,[111][112] and a pioneer of ophthalmology. For example, he was the first to recognize the reaction of the eye's pupil to light.[citation needed
]

In addition to contributions to humanity's understanding of human anatomy, Islamicate scientists and scholars, physicians specifically, played an invaluable role in the development of the modern hospital system, creating the foundations on which more contemporary medical professionals would build models of public health systems in Europe and elsewhere.[113] During the time of the Safavid empire (16th–18th centuries) in Iran and the Mughal empire (16th–19th centuries) in India, Muslim scholars radically transformed the institution of the hospital, creating an environment in which rapidly developing medical knowledge of the time could be passed among students and teachers from a wide range of cultures.[114] There were two main schools of thought with patient care at the time. These included humoral physiology from the Persians and Ayurvedic practice. After these theories were translated from Sanskrit to Persian and vice-versa, hospitals could have a mix of culture and techniques. This allowed for a sense of collaborative medicine.[citation needed] Hospitals became increasingly common during this period as wealthy patrons commonly founded them. Many features that are still in use today, such as an emphasis on hygiene, a staff fully dedicated to the care of patients, and separation of individual patients from each other were developed in Islamicate hospitals long before they came into practice in Europe.[115] At the time, the patient care aspects of hospitals in Europe had not taken effect. European hospitals were places of religion rather than institutions of science. As was the case with much of the scientific work done by Islamicate scholars, many of these novel developments in medical practice were transmitted to European cultures hundreds of years after they had long been used throughout the Islamicate world. Although Islamicate scientists were responsible for discovering much of the knowledge that allows the hospital system to function safely today, European scholars who built on this work still receive the majority of the credit historically.[113]

Before the development of scientific medical practices in the Islamicate empires, medical care was mainly performed by religious figures such as priests.[113] Without a profound understanding of how infectious diseases worked and why sickness spread from person to person, these early attempts at caring for the ill and injured often did more harm than good. Contrarily, with the development of new and safer practices by Islamicate scholars and physicians in Arabian hospitals, ideas vital for the effective care of patients were developed, learned, and transmitted widely. Hospitals developed novel "concepts and structures" which are still in use today: separate wards for male and female patients, pharmacies, medical record-keeping, and personal and institutional sanitation and hygiene.[113] Much of this knowledge was recorded and passed on through Islamicate medical texts, many of which were carried to Europe and translated for the use of European medical workers. The Tasrif, written by surgeon Abu Al-Qasim Al-Zahrawi, was translated into Latin; it became one of the most important medical texts in European universities during the Middle Ages and contained useful information on surgical techniques and spread of bacterial infection.[113]

The hospital was a typical institution included in the majority of Muslim cities, and although they were often physically attached to religious institutions, they were not themselves places of religious practice.[114] Rather, they served as facilities in which education and scientific innovation could flourish. If they had places of worship, they were secondary to the medical side of the hospital. Islamicate hospitals, along with observatories used for astronomical science, were some of the most important points of exchange for the spread of scientific knowledge. Undoubtedly, the hospital system developed in the Islamicate world played an invaluable role in the creation and evolution of the hospitals we as a society know and depend on today.

Europe