Answered by Pieter Buis on April 9th, 2020
Sewers could be a step backward in terms of sanitation
The Dutch city of Leiden and the English city of London both experienced high and low points for the same reason but at different times. Lets call it a tale of two cities.
Leiden
Leiden is one of the older cities in Holland and for a long time the second largest city after Amsterdam.
It was founded on the banks of the Old Rhine which, as the name suggests, was the the route the Rhine had towards the sea before it changed course southward.
The Romans had a fort called Matilo as part of the Limes on the spot where Leiden would arise.
In the Middle Ages a settlement reappeared on the spot as a possession of the Bishop of Utrecht by the name of Leithon.
By early 15th century the city cannot have had more than 5000 inhabitants but it would experience a boom in population. Just prior to the siege of Leiden in the late 16th century it had 16.000 inhabitants and by the 1660s this had risen to 62.000 people.
Above: The population for the cities of Leiden and Haarlem, note that Amsterdam experienced a similar burst of expansion between 1560 and 1630 due to the influx of skilled workers from the Southern Netherlands.
It is home to the oldest university of the Netherlands which was granted by William of Orange for the valiant defence during the Siege of Leiden
. The city also used to be one of the big textile producing cities of the 17th century. It was where the Pilgrim moved to before heading to the New World.
As William Bradford (governor)
would write:
For these & other reasons they removed to Leyden, a fair & bewtifull citie, and of a sweete situation, but made more famous by ye universitie wherwith it is adorned, in which of late had been so many learned man. But wanting that traffike by sea which Amerstdam injoyes, it was not so beneficiall for their outward means of living & estats. But being now hear pitchet they fell to such trads & imployments as they best could; valewing peace & their spirituall comforte above any other riches whatsoever. And at length they came to raise a competente & comforteable living, but with hard and continuall labor. – Of Plymouth Plantation
Above: Leiden in the year 1649 after some rapid expansion of the city had taken place.
It was probably a good thing the Pilgrim left for Plymouth when they did because shortly after they left Leiden turned to shit.
Quite literally.
Leiden was founded on the banks of the old Rhine which provided the city not only with an easy means of transport (thanks to all the canals) but also with a source of relatively clean drinking water. As such the people in charge of Medieval Leiden had drawn up quite a list of ‘common sense’ rules to make sure the cities water was clean. In fact a lot of building codes were also quite stringent.
For example wooden buildings and thatched roofs were forbidden. Houses had to be constructed with brick or stone and roofed with slate or tile in an effort to prevent city fires.
Houses were built on regular plots of land from the 14th century onward and archaeological evidence suggests nearly all excavated plots possessed a private cesspit, most of them high quality brick lined ones.
Not unsurprising since a Leiden bylaw of 1463 mandates ‘every house [including those] that are rented must have a privy at its disposal’. Crucially the law also stipulated that “the privy should be a stand-alone facility, meaning that an overflow or sewer that drained into the nearest canal was prohibited.”
The ‘cesspit law’ passed in Leiden reveals that in the late mediaeval period there were three stakeholders, each with different interests when it came to sanitation management: the local government, tenants, and housing developers or landlords. Whenever municipal legislators spoke out in favour of this ordinance, all arguments referred to the public interest of having high-quality water in the town’s canals and to its importance for the social and economic infrastructure. The accumulation of dirt and sludge in canals, which were the main transport routes, was considered harmful to the local economy. Moreover, the blocked waterways hampered the drawing of water from the canals for extinguishing fires (Hamaker, 1873: 148–49; Huizinga, 1911: 316).
This was not solely a local concern: along with stench and contamination, the by-laws of other towns in north-western Europe also frequently mention ‘traffic hindrance’ as a reason for similar laws (Jørgensen, 2010b: 37). Apart from these practical considerations, draining human waste into the canals was also believed to harm the common good (Jørgensen, 2010a). Polluting and clogging the town’s arteries (i.e. waterways) would threaten the urban body or body social (Rawcliffe, 2013). The emergence of cesspits and the policy of the city fathers in the water-rich towns of the Dutch coastal provinces can be regarded as material evidence of a utilitarian principle being applied. This principle of the needs of the many outweighing the needs of the few was expressed in the form of policies and statutes employing such terms as res publica and bonum commune communitatis (Stein et al., 2010).
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Landlords were responsible for providing cesspits for all of their housing, regardless of the rental rate, and the ordinance stated that if landlords failed to fulfil their obligation, tenants should notify the city fathers. More specifically, the law stated that any tenant who moved after 1 May into a house that had a privy draining directly into a canal should report this within a month.
Cesspits which did not drain into the canals kept the quality of the surface water at an acceptable level. Furthermore if properly built with a brick lining they should not pollute the groundwater at great distances. People made sure to built wells at some distance from cesspits.
However when you look at their estimated date of usage it appears people stopped using cesspits around or about the time the population boomed.
The reason for this trend is quite simple to explain.
Capitalism and the needs of the few outweighed the needs of the many. The migration of skilled workers from the Southern Netherlands to the North boosted the textile production of Leiden. At the same time the landlords who were supposed to pay for the emptying of cesspits found the cost associated onerous.
Already quite early the Textile barons had managed to suppress wages of the workers.
By 1500 wealth inequality in Leiden (and to a lesser degree in Haarlem) was considerable by international standards (Van Zanden, 1998: 38). The close collaboration between the richest textile entrepreneurs (drapers) and the city council in implementing a repressive pay policy was typical for Leiden at that time; it meant that fullers, tuckers, dyers, and weavers had an extremely low earning potential in contrast to the wealthy textile barons at the top (Brand, 2008: 100–03). The Armenrapport (Poverty Report), written in 1577 by Leiden’s talented stadssecretaris (town clerk) Jan van Hout (1542–1609), reveals that the extreme poverty in Leiden was caused by textile entrepreneurs who were solely motivated by becoming ‘rich, powerful, and great and never cared about paying their craftworkers a fair wage but forced their workers into a position of slavery’ (Kaptein, 1998: 150; see Van Maanen, 2010 for the background to the Poverty Report).
But with the huge influx of skilled workers from the South the housing situation became more pressing.
The unprecedented, large, and rapid demographic rise affected everyday life for Leiden’s inhabitants, most notably in the continuous shortage of housing (Noordam, 2003: 43–45; Van Maanen, 2009: 54–57; Van Oerle, 1975: 430–34). Dwellings were being constructed — in Leiden the housing stock rose by 182 per cent within twenty-five years (1581–1606) — but the demand for cheap housing continued to outpace supply (Daelemans, 1975: 187). Many families lived in shared accommodation (Posthumus, 1939: 161). The few available records of rental rates for houses in Leiden suggest that between 1581 and 1619 average rents rose by 240 per cent (Posthumus, 1939: 208).
Textile barons wanted to harness the large influx of skilled labour for their enterprise and needed to have the workers housed. The landlords struggled to accommodate this flood of immigrants in part due to extensive building codes. Building houses in brick and tile is more expensive than wood. Furthermore brick lined cesspits needed to be emptied out every couple of years which cost the equivalent of a month or three worth of rent, not something the landlords were eager to cough up.
Above: a brick lined and domed cesspit in the Netherlands
It seems these two powerful interest groups got the city government to ease building regulations.
Shortly before the year 1600 cesspits were increasingly discarded and replaced by brick sewers. Unlike cesspits these did not need to be periodically emptied since they drained straight into the canals, for landlords this meant less money spend on sanitation. Needless to say I find the modern notion that sewers were the superior option or somehow the hallmark of modernity an odd one.
The building codes also went out of the window along with the requirement that work be done by certified professionals.
The local government of Leiden, consisting mainly of textile entrepreneurs, were ready to welcome as many skilled textile workers from the southern Netherlands as possible. Leiden did not want them to go elsewhere, to Amsterdam or Haarlem (Posthumus, 1939: 159). Prior to the extension of the town boundaries in 1611, the town council of Leiden had repeatedly called for expanding the town; indeed they regretted that too few workers (arbeytsluyden) were settling locally, ‘owing to a lack of appropriate housing’ (‘door gebreck van bequame huysinge’; Van Oerle, 1975: 350). In the seventeenth century the top textile entrepreneurs constantly pressed for an expansion of the town to provide housing for their workers (Posthumus, 1939: 977).
Eventually, obstructive regulations governing house construction were lifted, and contrary to mediaeval regulations, the building of timber dwellings was permitted (Daelemans, 1975: 200). The town council gave free rein to the housing industry to remedy the shortage as soon as possible.
By 1640 the shortage was still severe. So many inhabitants lived intra muros ‘that no dwellings were unoccupied and there were no vacant areas where anyone might live properly’ (‘datter geen huysen off plaetsen ledich staen, waer yemandt bequamelick soude mogen wonen’; Posthumus, 1939: 976). Large dwellings were demolished to be replaced by ‘small hovels’ (‘kleine krotties’; Posthumus, 1939: 977). The town council even took the exceptional measure of removing the builders’ monopoly. It was no longer necessary for bricklayers, carpenters, and other craftsmen to be members of a guild to ply their trade. The town council assumed that foreign artisans and ‘cobblers’ would work with greater speed than guild members (Posthumus, 1939: 977–78).
Many of the new plots were bought by carpenter/mason housing developers who started building sewers en masse. In short the industrialists governing the city of Leiden turned it into a slum. A reeking slum at that.
The shit and piss of some 62.000 citizens was deposited in the nearly stagnant canals of Leiden. In 1633 Jan Pietersz Dou was send to research the problem of the limited flow of the canals and attributed it largely to all the sewers draining into the canals. In 1670 Adam Thomasz Verduyn wrote that fish had completely disappeared from the river and canals owing to the incredible pollution.
He called the city a ‘stinck-gat’ (stink-hole) and said the entire city reeked like a ‘gemeen privaet’ (common privy).
Solutions to this self induced problem were already suggested in the 1590s with windmill operated pumps to pump out the dirty water being one of them. Closing the sewers up again was suggested but not implemented. Only in the 1680s did a provision come into effect which had the outlet of the sewers discharge below the lowest water level in the canals in an effort to improve the smell.
However literally shitting up the city was not just something which killed all the fish or made the city smell like a reeking privy, it brought some serious health consequences with it.
As Adam Thomasz Verduyn, calling himself a friend of the people, wrote in 1670 the cities brewers continued to draw water from the extremely polluted canals because they couldn’t be bothered to source fresh water beyond the city limits. As he so elegantly put it in 17th century Dutch they [the brewers of Leiden]:
‘Geven zij den luyden haer vuyle pis, met dreck en water gemenght, te drincken’
‘Give the people their dirty piss, mixed with shit and water to drink’
Needless to say these malty piss and shit cocktails weren’t too healthy. In 1669 between June and December some 40.000 of the cities 62.000 people fell ill and 1900 died. This disease was:
‘ontstaen door het brack, stinckent water en bier daeruyt gebrouwen’
‘caused by the smelly brackish water and the beer brewed from it’
The likely culprit based on symptoms shown by the inhabitants was Cholera, though the European rather than the Asiatic form of the disease. The situation wasn’t adequately resolved until the 19th century when better water supplies, the closing of sewers and filling of canals was pushed through by the sanitation movement.
Interestingly enough the city of Haarlem only 27 kilometers north of Leiden managed to avoid a similar fate. While Haarlem did have a textile industry the most important industry was brewing. Beer from Haarlem was exported to other cities in the Netherlands but also to other European countries. Given its chief position and economic importance the Brewers managed to successfully petition the city government to ban and persecute any who tried to built sewers. Furthermore they fought other industrial groups such as linnen bleachers who they reckoned polluted the water in the city canals. As such Haarlem remained a much cleaner and healthier city until the 19th century.
All of the above information and citation is from Roos van Oosten’s paper ‘The Dutch Great Stink: The End of the Cesspit Era in the Pre-Industrial Towns of Leiden and Haarlem’. Additionally she published a much more extensive book called ‘De stad, het vuil en de beerput : De opkomst, verbreiding en neergang van de beerput in stedelijke context ’. Both of them are interesting reads although I can imagine they might be covering something of a niche interest
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London
It is often said history repeats itself first as tragedy, then as farce. This is more or less what happened in London as they followed Leiden down the path of pollution and Cholera. London has a history that goes back way further than Leiden but in terms of sanitation it is frighteningly similar.
It sits at a convenient crossing point of the Thames and was developed into a proper city by the Romans.
Medieval London had several public toilets one of which I believe was on or about London Bridge. The more usual way of disposing waste however were cesspits like in Leiden. Judging by the Nuisance Law these could be lined or unlined, the lined cesspits being allowed to be constructed closer to neighbouring properties.
Water came from multiple sources. The brewers used water from the Thames and when the tide was particularly strong it is said the ale could taste salty. London was also famed for some springs and wells built to tap into them, in the 15th century one writer particularly lauds some wells just outside the city limit in the north. These wells continued to supply large parts of London well into the 19th century.
The shallow wells of London were an ancient and a popular institution. Although the value of these well-waters was said to be popularly estimated by the brilliancy with which they sparkled, their flavour was also important in their popularity. The notorious Broad Street pump, for example, was so much to one lady’s taste that she regularly had its water brought to her home in Hampstead.
In 1245 the city government also started work on the Great Conduit
which was a series of pipes that brought in water from the Tyburn spring 4.3 kilometers away to Cheapside inside the city. For a generous sum people could also get a private line from this great conduit to their homes. The diameter of those pipes not being allowed to be very thick for fear that the pressure would drop too much.
In 1582 a Dutchman or German by the name of Peter Morice
constructed one of the first pumps within the city limits. A waterwheel set in the strong current under London Bridge powered pumps which pumped up the water and piped it to customers.
Above: A slightly newer version (circa 1700) but using the same principle as the Morice pump.
(which also convinced the city government that thatch and wood were not ideal building materials) destroyed this device but Peter’s Grandson built a replacement. It was described as follows:
The three waterwheels worked a total of 52 water pumps; the wheels could turn in either direction and so be driven by the flowing and ebbing tide; and the pumps were designed to force 132,120 gallons an hour to a height of 120 feet.
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Just prior to the demolition [in 1822], the waterworks, supplied 10,417 houses with 26,322,705 hogsheads per annum, at a rental cost of £12,266.
Similar pumping stations were erected by a number of water companies in the course of the 17th and 18th century. By the late 18th century around four fifth of Londoners had water piped straight into their homes. In addition an aquaduct called the New River (England)
was constructed to provide London with fresh water. It is believed the Thames was as clean as it is today well into the late 18th century which explains why piped water was so popular. The piped water however was not continuous but only operated during several hours each day and not on Sundays. This meant that people had to resort to storage cisterns in their homes or public wells when the taps weren’t on.
Unlike Leiden which has a huge network of canals London had an issue with drainage. The Northern part is a relatively low lying area which had many smaller rivers drain into it.
When more and more houses started being built along with paved roads the ability of rainwater to permeate into the ground was also hampered. All of this necessitated a sewer system to drain the excess water.
Let it be known though that it was absolutely verboten for people to hook up their cesspits or latrines to this set of sewers. A certain 14th century Alice Wade being fined for doing exactly that. Like in Leiden it wasn’t considered good for the public to drain latrines into surface water.
Unfortunately for the Londoners this happy situation was about to change.
For one London like Leiden experienced a veritable population boom. It was just under a million in 1800 but rose to 2.3 million by the 1850s. This population boom of course went hand in hand with the increasing prevalence of slums, I don’t suppose Victorian slums need much of an introduction.
One way to deal with the increase in waste was to built ‘better’ cesspits
As more houses and tenements were built, and as population densities became higher in the early years of the nineteenth century, more cesspools were sunk, and were sunk deeper. By the 1840s, cesspools were being deepened to the first stratum of sand, that is 6 to 10 feet. At this level, the cutting generally carried the cesspool into a spring, which relieved it of liquid refuse. This, of course, was very economical, since the cesspool did not need emptying so frequently, and, as one observer pointed out, instead of having a wagon to carry liquid refuse away, one could make do with a cart because the refuse was solid.
However, the new cesspool techniques often had serious consequences for local water supplies, since the permeation of springs by cesspool matter became swifter and greater. In Paradise Row, Rotherhithe-inaptly named, since it was unsewered-a new cesspool was put in about 1840. It was made as deep as possible-“to suit the present levels”-and before long there was trouble. The first effect was to drain the wells, but then, some time later, as the cesspool began to fill, discoloured and foul-tasting water flowed back into the wells. Similarly, in Battersea, the cesspools of a new estate of six houses permeated the wells within a matter of days. In both cases, the residents turned to the local company for water. By 1844, throughout south London, it was said, ancient and celebrated springs were being abandoned by the inhabitants. The pumps, however, remained, and were used by poor passers-by, who did not know their reputation.
In some Dutch cities there were laws against digging cesspits to the water table for exactly this reason. Semi-permeable brick cesspits also being banned in some cases. It is unlikely that people in London did not realise digging deeper cesspits could pollute well water so to it seems more like an economical decision. The new cesspits were cheaper to operate since the fluids drained and if it polluted local wells then the locals would just have an extra incentive to switch to piped water.
But it wasn’t just cesspits that ruined the wells. A new invention, laudable as it may have been, turned the Thames in an open sewer.
While a modern sounding Flush toilet was invented in 1596 the design wasn’t entirely practical yet. Back then most houses didn’t have piped water and furthermore the connection to a drain was open leaving bad smells and noxious fumes to rise up out of the toilet. This was only remedied in 1775 when Alexander Cumming
patented the S-trap
Above: the S-Trap now found on most household drains
So by the late 18th century London possessed both piped water and the possibility to install adequately built flush toilets. Of course the question is where you’re gonna send all that sewerage too.
The solution seems to have been childishly obvious.
In 1815 the law which banned people from connecting their household drains to the sewer system (which as mentioned earlier was to facilitate the drainage of rainwater) was repealed. From then on people could hook up their newfangled flush toilets to the existing sewer system which duly emptied millions of gallons of raw sewage straight into the Thames.
The evidence points to a deterioration in the condition of the Thames between about 1815 and 1830, which became more rapid between 1830 and 1850. Leslie Wood, in his study of the history of the river’s pollution, is of the opinion that the quality of the Thames water in the later eighteenth century was not very different from what it is today, but that by 1850 the river had become “putrid, noisome and dead”.
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In 1828, it was calculated that between 139 and 145 sewers were discharging effluent into the Thames, mostly within a limited area: all the city’s major outfalls entered the river between the King’s Pond sewer at Vauxhall Bridge and the Black Ditch at Limehouse. From about 1830 on, things got progressively worse, as the water-closet became an accepted facility. By the 1840s, the London water companies were commonly providing “high service”-that is, to the upper floors of houses-which was used principally for the flushing of closets, and closets were widely used in wealthy and newly-built districts.
The smell of that giant open sewer called the Thames could get very bad during the summers and in a time when the miasma theory was widely accepted it was thought to be dangerous to health.
The scientist Michael Faraday
described the situation in a letter to The Times
in July 1855: shocked at the state of the Thames, he dropped pieces of white paper into the river to “test the degree of opacity”. His conclusion was that “Near the bridges the feculence rolled up in clouds so dense that they were visible at the surface, even in water of this kind. … The smell was very bad, and common to the whole of the water; it was the same as that which now comes up from the gully-holes in the streets; the whole river was for the time a real sewer.”
Efforts to clean up the river were attempted just as the people of Leiden tried to clean the canals but not to the best effect. In 1857 the smell got so bad the government poured chalk lime, chloride of lime and carbolic acid
into the Thames to make the smell more bearable.
The following year it got even worse. The stink was so bad it Westminster nearly shut down.
The stench from the river had become so bad that business in Parliament
was affected, and the curtains on the river side of the building were soaked in lime chloride to overcome the smell. The measure was not successful, and discussions were held about possibly moving the business of government to Oxford or St Albans. The Examiner
reported that Disraeli, on attending one of the committee rooms, left shortly afterwards with the other members of the committee, “with a mass of papers in one hand, and with his pocket handkerchief applied to his nose” because the smell was so bad.
The disruption to its legislative work led to questions being raised in the House of Commons. According to Hansard
, the Member of Parliament (MP) John Brady informed Manners that members were unable to use either the Committee Rooms or the Library because of the stench, and asked the minister “if the noble Lord has taken any measures for mitigating the effluvium and discontinuing the nuisance”. Manners replied that the Thames was not under his jurisdiction.
Four days later a second MP said to Manners that “By a perverse ingenuity, one of the noblest of rivers has been changed into a cesspool, and I wish to ask whether Her Majesty’s Government intend to take any steps to remedy the evil?” Manners pointed out “that Her Majesty’s Government have nothing whatever to do with the state of the Thames”. The satirical magazine Punch
commented that “The one absorbing topic in both Houses of Parliament … was the Conspiracy to Poison question. Of the guilt of that old offender, Father Thames, there was the most ample evidence”.
At the height of the stink, between 200–250 long tons (220–280 short tons) of lime were being used near the mouths of the sewers that discharged into the Thames, and men were employed spreading lime onto the Thames foreshore at low tide; the cost was £1,500 per week.
But it gets worse.
Remember how we noted that the bulk of London households had access to piped water? That water was provided by eight water companies, four of which were exclusively supplied by water from the Thames drawn up within the city limits with the rest using a mix of water from the Thames, Lea and Ravensbourne, all of them likewise polluted.
The companies didn’t use filters either until the 1850s.
In effect these companies were serving the Londoners their own sewage. Not that people were unaware of this. As a complaint against one of these companies from 1828 attests they served:
through iron tubes, unto the habitation of seven thousand families, to be used daily at the breakfast table; in the composition of bread, pastry, soups, broths; and in the boiling of meats, poultry, pulses-a fluid, saturated with the impurities of fifty thousand homes-a dilute solution of animal and vegetable substances in a state of putrefaction-alike offensive to the sight, disgusting to the imagination, and destructive to the health.
Above: A satirical impression of the state of the water in London. A women drops her tea cup as she espies the microbes in her water with a microscope (circa 1828)
In 1848 John Snow
tried to establish the link between the Cholera outbreaks that ravaged London and the filthy water supply which added to the general sentiment that something ought to be done against all this. However this was not effected before recurring cholera outbreaks killed tens of thousands of Londoners.
Only during the second half of the 19th century were these issues resolved. Water companies had to move their water intake further upriver outside of city limits. Private cesspits were banned, public wells were closed but perhaps the most important thing was the construction of the first Modern sewer by Joseph Bazalgette.
That’s one of the key things I went people to remember. Often when we read about ancient or more recent civilisations possessing sewers we think of them as modern sewers rather than the historical sewers they actually were.
We like to think of London and Leiden switching from cesspits to sewers as a step ahead in the right direction, a sign of modernity and improved sanitation. I hope this answer has convinced you that was not actually the case.
History is not an inexorable march of progress or linear improvement. Sometimes newfangled inventions or profit seeking landlords literally shit up the environment and cause health problems. Sometimes a decent but not perfect situation deteriorates and as shown above people might not take action until they’re pretty far up shit creek.
It might be worthwhile to make a comparison between the early sewers of London and Leiden but unfortunately I know a lot less about the Roman sewage system. Though the fact that the Cloaca Maxima, like the London sewers, was initially designed to drain water and only later hooked up to latrines does not give me the impression the Tiber smelled much better than the Thames.
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