Category Archives: Nieuws

Lifestyle and disease in the long eighteenth century

The corona crisis demonstrates how easily too optimistic hopes for medical cures and faith in medical technology can turn in the most irrational rejection of medicine and the denial of disease. We are confronted with a health problem for which there is not yet a cure or a vaccin. It seems a question of individual constitution whether one gets contaminated with the virus, to what extent one develops symptoms of the disease, and if one will die. In fact we are in the same situation as our premodern ancestors, who had to survive diseases and epidemics without the benefits of cures.

This does not mean that they were necessarily helpless to manage health and disease. Classical medicine going back to Hippocrates gave them concepts and tools to strengthen their constitution and to prevent the onslaught of disease – at least, up to a point. For instance, social distancing, washing hands, and quarantine were measures regularly used when epidemics of the plague hit cities.

The attention to lifestyle in the prevention of disease and the problems of adhering to a healthy lifestyle in the long eighteenth century is investigated in detail in the recently published volume Lifestyle and Medicine in the Enlightenment: The Six Non-Naturals in the Long Eighteenth Century, edited by James Kennaway and Rina Knoeff. The volume examines what it meant to live healthily in the context of the six ‘non-naturals’ of Hippocratic medicine that determined one’s health and resistance to disease: airs and places, food and drink, exercise, excretion and retention, and sleep and emotions.

My own contribution discusses how Europeans survived in the tropical regions of the Dutch Atlantic: in West Africa, Brazil, an the Caribbean. I have written of this before in Dutch in my book Vrijbuiters van de heelkunde (now only available as ebook). In the article I focus in particular on the example of a surgeon from Amsterdam who went as ship’s surgeon to the Caribbean: Abraham Titsingh (1684-1776).

Abraham Titsingh. Line engraving by J. Houbraken after J. M. Quinkhard, 1742. Credit: Wellcome CollectionAttribution 4.0 International (CC BY 4.0)

Titsingh was a proud man, a quarrelsome fellow quick on the lookout for trouble. He made many enemies, not in the least among his professional colleagues in the surgeons’ guild of the city of Amsterdam. He wrote of himself: ‘that he presumed to many liberties en had his own tricks. [But] one should consider, when he spoke a little to freely, that he was a freeborn Dutchman, an Amsterdammer, who spoke the truth without restraint for the honour of his fellow countryman, his contemporaries and his colleagues […] to show that there were men in Amsterdam and that it was unnecessary to send pulls to Paris to learn surgery.’

‘Experience at the sick bed was the main thing’, according to Titsingh, and he had a low view of even famous academics as Boerhaave, who he described as blinded by their school knowledge and misleading the young by their unproved sentiments. Both from an empirical and anti-authoritarian stance Titsingh disliked established medical science and this stimulated him to have an open ear in the tropics to its inhabitants, and to develop and implement naval expertise aiming at survival in the unhealthy hot climates, managing health through the six non-naturals.

New book on drug smuggling and the Netherlands out in 2020

The past years I have been working on a new history of drug smuggling and the Netherlands in the twentieth century, in the context of the project The Imperative of Regulation funded by NWO, the Dutch Organization for Scientific Research. I have now come to an agreement with Manchester University Press to publish a book on the subject in the course of 2020.

The book intends to show how and why the Netherlands developed in the course of the twentieth century into a central hub of the international illegal drug trade. The book details the responses of smugglers to the state regulation of the market and the increasing demand of consumers, and develops a model of ‘criminal anarchy’ to explain the successes of the illegal drug trade. By using a long-term historical perspective on ‘the Dutch experience’ the book further elaborates and modifies the criminological concept of ‘disorganized crime’. It situates ‘criminal anarchy’ within Dutch society: historically, socially and culturally embedded in both native and migrant communities with their own historical traditions.

Historical investigation leads to the conclusion that when drug policy focuses on the fight against the supply side law enforcement will win the occasional battle, but is unlikely to win the war against drugs. Rather the reverse is the case: fighting the supply side only stimulates the proliferation characteristic of criminal anarchy. Consumer demand is uncompromising when there is no access to an alternative legal supply of drugs.

I will unfold the patterns of criminal anarchy narrating and discussing among others smuggler-users, Sixties idealists turned smugglers, and criminal entrepreneurs. The book details the activities of native Dutch, Chinese, Greek, and other smugglers before and after the Second World War; the rise of the Dutch cannabis trade and cultivation and its global connections; the Chinese, Turkish and Kurdish heroin trade; the Colombian cocaine syndicates; and the rise of the synthetic drug industry and the subversion of the state by Dutch criminal networks in the south and elsewhere in the country.

Neem historische en lekenkennis over cannabis serieus

Onlangs adviseerde het Huisartsengenootschap tegen de medische verstrekking van cannabis vanwege het ontbreken van overtuigend wetenschappelijk bewijs voor de werkzaamheid. Dat neemt niet weg dat alleen al in Nederland tienduizenden gebruikers in verschillende vormen cannabis gebruiken als zelfmedicatie. Ze hebben veel meer ervaringen met de werking op henzelf dan hun zorgverleners. Ze zulllen er ook niet mee ophouden, wat de uitkomst ook zal zijn van het legaliseringsdebat.

Opmerkelijk is dat er grote overlappingen bestaan tussen dit ‘lekengebruik’ van cannabis en het medische gebruik van cannabis in de geschiedenis. Cannabistincturen duiken al tenminste drie eeuwen geleden op in de Nederlandse farmaceutische handboeken. Tot het verbod van het gebruik  van cannabis in de wijziging van de Opiumwet in 1953 staan ze erin. Historici als ikzelf hebben uitgebreid materiaal over het gebruiken en voorschrijven van cannabis in het verleden gevonden.

Medisch Contact publiceert deze week een bijdrage van onze onderzoeksgroep medicinale cannabis aan de Universiteit Utrecht, een multidisciplinair team van onderzoekers, waarin we aandacht vragen voor het serieus nemen van deze historische en lekenkennis.

A German leprosy expert in 18th century Suriname

Gottfried Wilhelm Schilling wrote an influential treatise on leprosy in 18th-century Dutch controlled colonial Suriname.

In my book on Leprosy and Colonialism I have written more in detail about this adventurer/surgeon/physician, who became a slave doctor in the colony and framed a racialized  and sexualized pathology of leprosy. Schilling’s treatise is an example of how the fears of the white colonizers for the black slaves permeated medical colonial thought and policies, leading to compulsory segregation of leprosy sufferers.

There was some confusion of Schilling with another person of the same name, living in Suriname at the same time. Thanks to the work of American historian Nathalie Zemon Davis and of Philip Dikland of the Suriname Heritage Guide database we now know that there were two Schillings and that the slave doctor was born in Germany (Brandenburg), becoming one of the many German employees of the Dutch trading companies and colonial regimes. Nathalie Davis will shortly publish more on the subject.

Society needs pirates

In Pirate Nests and the Rise of the British Empire, 1570-1740 (published by University of North Carolina Press in 2015), American historian Mark G. Hanna questions the popular image of the pirate of the 16-18th centuries as a rebel against society and as a social bandit. Hanna shows how in the Anglophone world of England and its North American and Caribbean colonies piracy was a possible and not unusual career move of seamen. In the course of the 17th century merchants and sea captains in many English colonies, especially those that were ruled by charters (for example Rhode Island) were heavily involved in piracy. This was moreover an economic necessity for these colonies, since it was the only way to ensure import of bullion and goods such as textiles. Piracy was necessary for the rise of the British Empire, so Hanna claims. It took until the early 18th century for a decisive change: trade became more important than plunder as a source of income for the colonies, powerful players such as the East India Company resented the adverse effects on global trade of raids on ships from India, and the state and colonial governments turned piracy into an activity of outlaws.

Hanna gives an interesting and detailed description and analysis of these developments. In doing so, he clearly relishes the idea of turning over our image of the pirate as rebel. He also questions the democratic character of the Golden Age pirates, the ones who did become outlaws. For instance, the articles of agreement that these pirates signed, usually seen as evidence of democracy, were according to Hanna meant by the captains to ensure that crewmembers could not go back to the world of legality. After all, their signatures were written evidence that made the pirates run the risk of hanging. Hanna also questions whether the presentation in the famous chapter on Captain Misson in Johnson’s General History … of The Most Notorious Pirates, of a democratic and egalitarian pirate society on Madagascar, was meant as an utopian fantasy; rather, he sees this description as dystopian, since it confirmed all the fears and prejudices of contemporaries.

However, proving that piracy was an integral part of colonial expansion and society up until the early 1700s is not the same as disproving that piracy could be an act of social rebellion. It all depends I presume on one’s views on what (social) politics is. I have argued in The Devil’s Anarchy that the social rebellion of pirates took place on the level of the rhythms of everyday life, rather than on the level of consciously creating a new society. Even when outlawed, pirates needed connections to the legal economy, if only to sell their booty, to rest, and to re-outfit. This was true for early 17th-century pirates in European waters such as Simon the Dancer and Claes Compaen, for the buccaneers and flibustiers of the Brotherhood of the Coast, as well as for the Golden Age classical pirates. That increased importance of regular trade (that had to be safe-guarded from pirates) went hand in hand with a process of state building and the ‘extraterritorialization of violence’, turning pirates into outlaws (a process already described by Janice Thomson in her 1994 volume Mercenaries, pirates, and sovereigns) did not change this fact of everyday pirate life.

Pirates and other criminals needed and need middlemen, financiers, and buyers in the legal world. Hanna makes a significant contribution in detailing how in the 16th-18th centuries this also worked the other way around: the legal economies needed the illegal to survive and to embark on a process of ‘piratical colonization’. Only when expansion of trade and empire building did no longer need the pirates did the sea rovers turn into the ‘enemies of all mankind’.

Freebooters of Medicine: A Summary


Chapter 1


In this chapter the ‘adventurer-scientist’ is introduced. The chapter starts with German natural scientist Georg Marcgraf, finding himself in 1638 among the ‘cannibalistic’ Tapuya Indians of Brazil. At the siege of Portuguese-held Bahia the Dutch soldiers are plagued by diarrhea and dysenteria. Marcgraf discovers treatment methods among the Brazil Indians.

In the 17th and 18th centuries the European newcomers to the tropics had to deal with the disease-environment and had to find ways of survival: methods of prevention, hygiene and treatment. Finding this knowledge needed a special kind of researcher: the adventurer-scientist with a freebooter spirit. The adventurers were a very diverse group, but they shared some common characteristics. To start with they had a capacity for accurate and detailed empirical observations and for description of these observations. They were part of a network for the dissemination of information. Their activities had important practical and pragmatic components stimulating trade, expansion, and even privateering and piracy. An adventurer-scientist was able to open-mindedly create and sustain contacts with indigenous and to him strange cultures. He possessed personal characteristics such as perseverance, a healthy constitution, and ruthlessness, and he could operate in a violent environment. And he was able to operate autonomously. In fact, when substituting the words ‘searching for knowledge’ with ‘searching for Spanish treasure’, the characteristics do not change much.

The adventurer-scientists encountered a world in which the disease-environment was radically changing: the world of the ‘Columbian exchange’ of diseases and the spread of new health problems from Africa as a consequence of the slave trade. The next chapters will investigate their adventurers and significance in the world of the tropical Dutch Atlantic: West Africa, Brazil and the Caribbean.


Chapter 2


Here the health problems of the Europeans in the tropics are discussed. At first sight the tropics, in West Africa or the Caribbean, look like paradise. But soon the snakes are discovered: the murderous heat, the unhealthy air, ‘hot fevers’, the ‘flux’ (diarrhea) and bloody flux (dysenteria), scurvy, sexually transmitted diseases because of intercourse with black women, parasites, worms and insects. Description of the African Gold Coast as the ‘white man’s grave.’ Health problems affected most in particular common soldiers and servants because of their housing conditions and mal-nutritious diet.


Chapter 3


This chapter introduces the doctors, surgeons and barbers who went on voyages and overseas to the tropics. It discusses their social origins, their (lack of) training and qualifications and the development of textbooks based on experiences overseas. The level of competence of the surgeons fluctuated widely and there was sometimes considerable mistrust towards them. The case is discussed of a surgeon in the Dutch navy: he was executed after having confessed to a pact with the Devil and to the murder of his patients.


Chapter 4


In this chapter problems of health and disease are pictured from the perspective of the European adventurers: how did they experience their problems? Early modern medical thought and practices are evaluated as a kind of common sense medicine, centered not on pathogens and specific diseases but on disturbance of balance and with a strong holistic emphasis, placing the individual in an environmental context. In this framework, health problems are specific to certain regions and if there are health problems in a region, there are bound to be solutions there as well: specific prevention and treatment methods. Operating in this framework stimulated an open-minded view of health practices of other nations and cultures.

The first way to obtain medical knowledge in the tropics was a ‘piracy of knowledge’: this included a literal spying on practices of the enemies of the Dutch, the Spanish and the Portuguese. Dutch merchants at the end of the 16th century, working in the service of the Spanish and the Portuguese, returned to the Dutch Republic with knowledge on islands and inlet harbors in the Atlantic and the Pacific, There fresh supplies could be obtained, including lemons and oranges against scurvy, and patients could be rested and recover.

Spying discovered the uses of local medicinal plants in West Africa and South America. Knowledge was also obtained from indigenous inhabitants: e.g., South American Indians taught methods to safely extricate worms from the body.


Chapters 5


Between 1630 and 1654 the Dutch occupied the Portuguese colonies in Northeast Brazil and fought a protracted guerrilla war against their enemies. They found allies among the Brazil Indians, especially the sedentary Tupi and the nomadic Tapuya. In particular the Tapuya proved to be fierce warriors. But the Dutch were ambiguous about their allies. On the one hand, the Tapuya were seen as living in an anarchist and egalitarian paradise, without trade, government, and property. On the other hand, they were seen as lazy, cruel, and as followers of the Devil.

From a medical point of view the Indians were considered to be superbly adapted to the tropical environment. Being close to nature, they learned about the medicinal properties of plants from animals. It was thought therefore that the Dutch could learn about these properties and about suitable medical practices from the Indians. A few adventurers like Georg Marcgaf and the poet, soldier and treasure-hunter Elias Herckmans went on expeditions into the interior and learned from the Indians. The German Jacob Rabe went further: he took a Tapuya wife, lived among the Indians, and joined them in attacks on Portuguese settlers. He was finally murdered on instigation of a Dutch officer who disliked his close association with the Tapuya.

The knowledge obtained by the adventurers in the Brazil contact zone with the Indians found its way into medical practice and treatises, as is testified by he Historia naturalis Barsiliae (Natural History of Brazil, 1648), celebrated as the first text book on tropical medicine.


Chapter 6


The slave trade profoundly affected the social, political and biological environment of the Caribbean. Between 1660 and the Napoleonic era Dutch trading companies were key players in the slave trade with West Africa. Centered on the slave markets on the Caribbean islands of Curacao and Saint Eustatius, and the markets and plantations of Suriname and Guiana on the South American continent (the ‘Wild Coast’), Dutch traders shipped almost 300,000 slaves to the Americas. This chapter discusses illness and health on board of the slave ships, and the development of medical care. Because of commercial, not humanitarian reasons the companies wished to bring the slaves as healthy as possible across the Atlantic. ‘Healthy’ is of course a very relative notion here: a death percentage of 15% was considered acceptable. Ironically, in order to stay below this percentage use of the medical knowledge obtained in the tropics and partly gotten from the Africans themselves was crucial. The implementation of this knowledge on the ships is discussed. A key figure in this chapter is the Swiss surgeon David Henry Gallandat, who went to West Africa on Dutch slavers in the 1750s. Gallandat was very keen on learning medical knowledge from the Africans themselves, visiting African cities and conversing with the African doctors. But he used the information in his tract on medical care on the slave ships.


Chapter 7


At the same time, navy surgeons as Abraham Titsingh and Anton Schlapprizzi learned about prevention and treatment in the Dutch Caribbean. Titsingh learned from local inhabitants on Curacao and resented, as a ‘freeborn surgeon from Amsterdam’, the pretensions of academic doctors. Medicine to him was a matter of practice, not theory. Schlapprizi put this into effect when devising methods to deal with a new disease: the so-called ‘chocolate’ or ‘black flux’ (yellow fever) that plagued the crews on his ships.


Chapter 8


The plantation economy of Suriname, in which the overwhelming majority of the population consisted of African slaves, became a ground of exchange of medical information between blacks, whites, and Indians. New diseases were brought to Suriname: not only epidemics of yellow fever and so forth, but also an increase in the prevalence of skin diseases such as leprosy and yaws. African healers were important in the treatment of slaves, but many whites sought as well solace with black herbalists and even sorcerers. Slaves were however reluctant to share their knowledge with white doctors and slave-masters. A few Europeans succeeded in creating bonds and exchanging knowledge with blacks: the naturalist and illustrator Maria Sybilla Merian, being a woman, succeeded in obtaining knowledge from her female slaves on plants, medicine, and abortifacients. The Scottish-Dutch mercenary John Gabriel Stedman when fighting the Maroons kept his health because of the information received of his black servant and of his black girl friends. One surgeon, Johan Carel Mangemeister, joined the Maroons and was executed after his capture by Dutch troops.


Chapter 9


Sometimes local medicine made it into the pharmacopeia of European medicine and became an export product to Europe. This chapter details the career of quassiebita, a medicinal bark still used in Surinamese folk medicine. Already well known by the Indians of Guiana, information of the bark was given by the notorious African sorcerer Quassie to the Swedish adventurer Carl Dahlberg. Dahlberg successfully marketed the drug in Europe with the assistance of the famous Swedish botanist Linnaeus. Both Quassie and Dahlberg were figures on the fringe of their societies. Quassie was a feared sorcerer, a freed slave, and actually a collaborator of the Dutch in their war against the Maroons. Dahlberg was a typical adventurer, arriving penniless as a mercenary in Suriname and making his fortune there. It was the contact between fringes that made global circulation of knowledge possible.


Chapter 10


In his book Against Method philosopher of science Paul Feyerabend based himself on the history of science to conclude that science does not progress through fixed methods. On the contrary, the history of science shows a kind of ‘anything goes’: what works in a given situation, works, and afterwards people will theorize about the why and how. Against the pretensions and power aspirations of so-called rationalists who extolled strict scientific methods, Feyerabend sketched an ‘anarchist’ or ‘dadaist’ theory of knowledge and advocated a complimentarity of methods.

The history of the 17th– and 18th-century ‘adventurer-scientists’ is an example of this kind of ‘anything goes’. Their search for knowledge was not theory-driven, but pragmatic and opportunistic. Pre-modern medicine with its flexibility of concepts and its emphasis on the local nature of knowledge and practices proved to provide a fruitful framework for this search. The Dutch Atlantic gave the social and political environment in which ‘adventurer-scientists’ could thrive, analogous to the buccaneers and freebooters of that period. As the buccaneers were ultimately used by the European powers to fight off the Spanish, the adventurer-scientists were ultimately used by the European powers to fight off disease and death. Without the ability of the adventurers to operate in hostile environments and contact other cultures, medicine in the tropics could not have developed.