Quotulatiousness

August 29, 2021

The competing English and Dutch East India companies

In his latest Age of Invention newsletter, Anton Howes considers the odd fact that although the Dutch were the last major seafaring power to extend to the East Indies, they quickly became the most powerful European traders and colonialists in the region:

By the mid-seventeenth century, although the trans-Atlantic trades were still almost entirely in the hands of the Spanish, the European trade to the Indian Ocean had come to be dominated by the Dutch — which is quite surprising, as they had arrived so late. The high-value exports of the Indian Ocean — particularly pepper — had anciently arrived via the Red Sea, the Persian Gulf, or overland, and then been bought up in Egypt or Syria by the Venetians and Genoese, who then sold them on to the rest of Europe. It was then the Portuguese who had supplanted that trade in the late fifteenth century by discovering the direct route to the Indian Ocean around the Cape of Good Hope. The Portuguese monopolised the new sea route around Africa for a century, almost totally undisturbed by other Europeans, entrenching their position by building forts — occasionally with the permission of local rulers, but often without.

The Portuguese seem to have spread the rumour in Europe that they had effectively conquered the entire region, presumably to dissuade others from even trying to break their monopoly. Even as late as the 1630s, when other nations were already regularly trading there, foreign writers took the time to mock such assertions. As the Welsh-born merchant Lewes Roberts put it, the Portuguese “brag of the conquest of the whole country, which they are in no more possibility entirely to conquer and possess, than the French were to subdue Spain when they possessed of the fort of Perpignan, or the English to be masters of France when they were only sovereigns of Calais.” Quite.

[…]

But for all their tardiness, the Dutch arrival in the Indian Ocean was dramatic. The English may have been the first to threaten the Portuguese monopoly, but in the whole of the 1590s they sent a mere two expeditions out east, and in 1600-10 sent only a further eight (seven by the newly-chartered East India Company (EIC), with a monopoly over English trade with the region, and another voyage licensed to break that monopoly in 1604 by the king, which unhelpfully spoiled the company’s relations with local rulers by turning pirate and plundering Indian and Chinese ships). What the English sent out over the course of twenty years, the Dutch exceeded in just five. Between just 1598 and 1603, after the successful return of de Houtman’s first voyage, they sent out a whopping thirteen fleets — and this despite their merchants not even pooling their efforts like the English had until the very end of that period, when in 1602 the various small and city-based Dutch companies were merged to form a single, national joint-stock monopoly, the Verenigde Oost-Indische Compagnie (VOC). The founding of the VOC accelerated the divergence. Between 1613 and 1622 the EIC sent out a paltry 82 ships compared to the VOC’s 201.

The sheer quantity of Dutch ships heading for the Indian Ocean meant that they were soon dominant amongst the European merchants there, capturing forts from the Portuguese, founding further bases of their own, and able to forcibly keep the English out — sometimes by attacking the English directly, other times by simply threatening any of their would-be trading partners. The steady stream of Dutch ships also allowed them to resupply and maintain their factors — the key infrastructure of long-distance commerce, as I explained in last week’s post for subscribers. They were able to have a presence, and project force, in a way that the English could not. By 1638, Lewes Roberts, despite often lauding England’s commercial achievements, and being an EIC official himself, had to concede that in the Indian Ocean “the English nation are the last and least”.

That English weakness was reflected in how EIC merchants had to comport themselves in the region so as to have any share in the trade at all. Despite the EIC’s later reputation for bloodthirsty rapaciousness, in the early seventeenth century they were highly reliant on good relations with the locals. Whereas the Dutch could often afford to use force and bear the repercussions, the English more or less only held on in the early days by ingratiating themselves with local rulers — often by finding common cause against the aggressive and domineering Dutch. The infrequently-supplied English factors were often heavily indebted to local merchants too, including the Indo-Portuguese — a group that they often married into, for access to social networks and support. As the historian David Veevers argues in a new overview of the early EIC (a relatively pricey academic book, but compellingly argued and juicy with detail), the English often went further than just friendliness or integration, subordinating themselves to local rulers too. Of the few early forts that the English managed to establish, for example, that at Madras in 1640 was only built because the local ruler encouraged it, treating the English there as his vassals.

August 27, 2021

The Raid on the Medway – Grand Theft Warship

Filed under: Britain, Europe, History, Military — Tags: , , , , — Nicholas @ 02:00

Drachinifel
Published 24 Apr 2019

Today we look at the Dutch raid on the Medway in the 2nd Anglo-Dutch War and its after-effects.

Want to support the channel? – https://www.patreon.com/Drachinifel

Want to talk about ships? https://discord.gg/TYu88mt

Music – https://www.youtube.com/watch?v=jRQWZ…

Want to get some books? – www.amazon.co.uk/shop/drachinifel

Drydock Episodes in podcast format – https://soundcloud.com/user-21912004

From the comments:

lordmuntague
2 years ago
“On 14 December 1941 a Dutch minelayer named after Jan van Brakel, which was serving as a convoy escort on the UK eastern coast, accidentally hit the anchor buoy of one of the gate vessels which were protecting the entrance to the Medway during World War II. The commander reported this incident to the port authorities, signalling: “Van Brakel damaged boom defence Medway”. The instant reply was: “What, again?”

From the RNSA Website.

August 20, 2021

HMS Indefatigable – Guide 116 (Extended)

Filed under: Britain, France, History, Military, Weapons — Tags: , , , , , — Nicholas @ 02:00

Drachinifel
Published 6 Apr 2019

HMS Indefatigable, a razee frigate of the British Royal Navy, is today’s subject.

Want to support the channel? – https://www.patreon.com/Drachinifel

Want to talk about ships? https://discord.gg/TYu88mt

Want to get some books? www.amazon.co.uk/shop/drachinifel

Music – https://www.youtube.com/c/NCMEpicMusic

August 14, 2021

English wholesalers, Dutch retailers and the expansion of foreign trade by European sailors

In the latest Age of Invention newsletter, Anton Howes considers the changing nature of English foreign trade as possibly one of the main drivers of the unprecedented growth of London from 1550-1650, and how both English and Dutch sailors differed from most of the rest of Europe:

An English merchant ship of the late 16th to early 17th century: this is a replica of the Susan Constant at the Jamestown Settlement in Virginia. The original ship was built sometime before 1607 and rented by the Virginia Company of London to transport the original settlers to Jamestown.
Photo by Nicholas Russon, March 2004.

I am fairly convinced that this transformation was sparked by the changing nature of England’s trade, with its merchants taking near-total control of it themselves, whereas once they had relied on foreign merchants to bring many of their imports to them. And thanks to their adoption of celestial navigation techniques from the Iberians and Italians — learning to read the stars, to find their latitude at sea — the English gained the ability to discover new routes, noting details down for others to come back again and again and create more permanent new trades. In merchants’ parlance of the time, the English increasingly went in search of “the well head” — to buy things at source, where they were cheapest.

This sounds like the common-sense thing to do. But it was surprisingly rare. Very few countries’ merchants attempted to take advantage of such opportunities for arbitrage — to buy where things were cheapest and sell them where they were most expensive. Even the English themselves, despite their newfound search for well heads, rarely exploited arbitrage opportunities to the full. Although they bought at source, they tended, at first, to sell the goods they’d acquired back in London, to serve English consumers rather than taking them to wherever the goods would sell for the highest prices. This was instead the strategy of the Dutch, whose trading techniques were by 1600 said to surpass all others. Indeed, the Dutch were also some of the only merchants who discriminated on prices within markers, “not shaming to retail any commodity by small parts and parcels”, as one English merchant complained, charging a multitude of buyers according to what they thought they could get from them — something that “both English merchants and Italians disdain to do in any country whatsoever.” It was seemingly considered beneath them.

I’m not wholly clear why the English only sold wholesale when they knew that price discrimination was a Dutch advantage. It seems, at first, to be irrational. But I suspect it had something to do with the wider difficulties of trading abroad. For the English and Dutch were quite unusual in Europe in the early seventeenth century for being among the only merchants willing to risk sailing to shores where their own rulers held no sway.

The Hanseatic merchants of the North Sea and Baltic, who had once been dominant in London, had been stripped of their privileges there and displaced by the English, later confining themselves largely to the Baltic. German mercantile efforts were otherwise generally concentrated inland. And French merchants were apparently under-capitalised, or so the English suspected, because “gentlemen do not meddle with traffic, because they think such traffic ignoble and base”. French merchants did occasionally sail down the Atlantic coast to Spain, and into the Mediterranean to trade with Italy and the Ottoman Empire, but overall they were content to have third parties to come to them — there was always the attraction to foreign merchants of being able to buy French wines, salt, linens, and grain.

As for the once-great Italians, they had apparently been impoverished by the Portuguese discovery of a direct route around Africa to the Indian Ocean, and perhaps by the depredations of various Mediterranean predators too — Algerian corsairs, Ottoman galleys, and the like. Although their rulers could themselves be merchants — the Grand Duke of Tuscany, a Medici, was considered the greatest merchant of them all — by this stage the Italians only rarely ventured far abroad themselves, except over land. Indeed, the English considered them impious for not risking the seas, accusing them of blasphemy for not trusting their lives and livelihoods to God. Whereas the Venetian merchant-nobility had once been required to spend time aboard ship, English commentators by 1600 noticed that their mariners were now overwhelmingly Greek. “Their customs have decayed, their ships rotted and their mariners, the pride of their commonwealth all become poltrones” — that is, loafers or idlers — “and the worst accounted in all those seas”. A Tuscan exploration of the coast of South America in 1608, to look into founding a colony in what is now French Guiana, had to be captained and piloted by Englishmen. What reputation the Italians maintained was as financiers and money-exchangers — perhaps because the Genoese were the only merchants permitted to take the vast quantities of New World silver out of Spain.

August 6, 2021

QotD: The development of Madeira wine

Filed under: Europe, History, Quotations, Wine — Tags: , , , , — Nicholas @ 01:00

The island of Madeira was often a last port of call from the 15th Century for sailing ships heading to the New World or the East Indies. The local wine loaded on to the ships would quite often spoil because of the heat and motion of the voyage. To prevent this from happening, a small amount of alcohol distilled from cane sugar was added to bring up the strength and kill unwanted bacteria.

The heat of the voyage, especially in the confined holds of the ships, plus the motion of the ship, transformed the wine, giving it the familiar tart edge that distinguishes it from port. One shipment was returned after the long round trip, and was found to be popular with customers, who preferred the new taste, so producers began sending the wine on the round trip to age it. It was known as vinho da roda, wine of the round trip, and initially could not be produced any other way. Thomas Jefferson was an early fan, and the Founding Fathers toasted the signing of the Declaration of Independence with it.

The long sea voyage was expensive, so the producers experimented with ways to reproduce the conditions of the voyage. At first they stored it in rooms exposed to the heat of the sun, then developed the modern method of heating the wine in steel vats heated by running hot water. This, they found, replicated the conditions of a tropical voyage and produced the widely admired wine we know as Madeira.

Dr. Madsen Pirie, “Some discoveries, like Madeira, are accidental”, Continental Telegraph, 2018-11-27.

July 31, 2021

English sea-borne trade in the early 17th century

Filed under: Africa, Americas, Asia, Books, Britain, Europe, History — Tags: , , , , , , — Nicholas @ 03:00

In the latest Age of Invention newsletter, Anton Howes reviews a book on English trade … a very old book:

I’ve become engrossed this week by a book written in 1638 by the merchant Lewes Roberts — The Marchant’s Mappe of Commerce. It is, in effect, a guide to how to be a merchant, and an extremely comprehensive one too. For every trading centre he could gather information about, Roberts noted the coins that were current, their exchange rates, and the precise weights and measures in use. He set down the various customs duties, down even to the precise bribes you’d be expected to pay to various officials. In Smyrna, for example, Roberts recommended you offer the local qadi some cloth and coney-skins for a vest, the qadi‘s servant some English-made cloth, and their janissary guard a few gold coins.

Unusually for so many books of the period, Roberts was also careful to be accurate. He often noted whether his information came from personal experience, giving the dates of his time in a place, or whether it came second-hand. When he was unsure of details, he recommended consulting with better experts. And myths — like the rumour he heard that the Prophet Muhammad’s remains at Mecca were in an iron casket suspended from the ceiling by a gigantic diamond-like magnet called an adamant — were thoroughly busted. Given his accuracy and care, it’s no wonder that the book, in various revised editions, was in print for almost sixty years after his death. (He died just three years after publication.)

What’s most interesting about it to me, however, is Roberts’s single-minded view of English commerce. The entire world is viewed through the lens of opportunities for trade, taking note of the commodities and manufactures of every region, as well as their principal ports and emporia. A place’s antiquarian or religious tourist sites, which generally make up the bulk of so many other geographical works, are given (mercifully) short shrift. Indeed, because the book was not written with an international audience in mind, it also passes over many trades with which the English were not involved, or from which they were even excluded. It thus provides a remarkably detailed snapshot of what exactly English merchants were interested in and up to on the eve of civil war; and right at the tail end of a century of unprecedented growth in London’s population, itself seemingly led by its expansion of English commerce.

So, what did English merchants consider important? It’s especially illuminating about England’s trade in the Atlantic — or rather, the lack thereof.

Roberts spends remarkably little time on the Americas, which he refers to as the continents of Mexicana (North America) and Peruana (South America). Most of his mentions of English involvement are about which privateers had once raided which Spanish-owned colonies, and he gives especial attention to the seasonal fishing for cod off the coast of Newfoundland — a major export trade to the Mediterranean, and a source of employment to many English West Country farmers, who he refers to as being like otters for spending half their lives on land and the other half on sea.

But as for the recently-established English colonies on the mainland, which Roberts refers to collectively as Virginia, he writes barely a few sentences. Although he reproduces some of the propaganda about what is to be found there — no mention yet of tobacco by the way, with the list consisting largely of foodstuffs, forest products, tar, pitch, and a few ores — the entirety of New England is summarised only as a place “said to be” resorted to by religious dissenters. The island colonies on Barbados and Bermuda were also either too small or too recently established to merit much attention. To the worldly London merchant then, the New World was still peripheral — barely an afterthought, with the two continents meriting a mere 11 pages, versus Africa’s 45, Asia’s 108, and Europe’s 262.

The reason for this was that the English were excluded from trading directly with the New World by the Spanish. It was, as Roberts jealously put it, “shut up from the eyes of all strangers”. The Spanish were not only profiting from the continent’s mines of gold and silver, but he also complained of their monopoly over the export of European manufactures to its colonies there. It’s a striking foreshadowing of what was, in the eighteenth century, to become one of the most important features of the Atlantic economy — the market that the growing colonies would one day provide for British goods. Indeed, Roberts’s most common condemnation of the Spanish was for having killed so many natives, thereby extinguishing the major market that had already been there: “had not the sword of these bloodsuckers ended so many millions of lives in so short a time, trade might have seen a larger harvest”. The genocide had, in Roberts’s view, not only been horrific, but impoverished Europe too (he was similarly upset that the Spanish had slaughtered so many of the natives of the Bahamas, known for the “matchless beauty of their women”).

July 28, 2021

Possible relic from the 1917 Halifax explosion discovered by scuba diver

Filed under: Cancon, History, WW1 — Tags: , , , , — Nicholas @ 03:00

If you’re not familiar with the Halifax explosion, I collected some information about it here. One of the lesser-known ships involved in the disaster was the schooner St. Bernard, which was completely destroyed in the explosion of the cargo ship SS Mont Blanc after it collided with the Belgian relief ship Imo in the Narrows:

The schooner St. Bernard, which was destroyed when the Mont Blanc exploded nearby.
Photo from the Nova Scotia Museum.

A Halifax scuba diver has found something that could shed a little new light on one aspect of a dark chapter in Nova Scotian history.

Bob Chaulk has explored Halifax harbour from the Bedford Basin to Chebucto Head with hundreds of scuba dives over the last 30 years. But this spring, a routine dive in a small cove in the Narrows between Halifax’s two bridges led him to a big find.

Amid the usual assortment of scuttling crabs, polished bottles and bits of plastic trash, he came upon a huge, heavy object in Tufts Cove.

“When I first saw the anchor, I thought, OK, there’s a wreck here, some old derelict came in here. But there’s no way a ship that size could have gotten in here,” he said.

He explored until his air just about ran out. He estimated the anchor was about two metres long and weighed 135 kilograms. A ship that needed an anchor that size could not have sailed into shallow, rocky Tufts Cove, he thought.

So how did the old anchor get there?

He looked across the Narrows and found himself staring right at ground zero for the Halifax Explosion, which killed nearly 2,000 people. On Dec. 6, 1917, the vessel Imo and the Mont Blanc, a ship carrying explosive cargo, collided. The Mont Blanc caught fire and drifted into Pier 6, a space occupied today by the giant Halifax Shipyard building. The St. Bernard, a lumber schooner, was also at the dock.

“So now you have two ships side by side with a dock in between them. Here’s the Mont Blanc, here’s the Imo,” Chaulk said, showing the ships’ positions with his hands. “This one blows up, destroys this one, and I contend the anchor [of the St. Bernard] went through the air and landed right here.”

A modern day view of the Narrows, showing Tufts Cove to the north and the huge Halifax Shipyard complex on the south side of the channel.
Google Maps.

I suspect that the paved area to the right of the cove proper is largely landfill and the shoreline of 1917 probably followed much closer to the railway line.

H/T to Colby Cosh for the link.

June 12, 2021

Sail to Steam to Iron – Half a Century of Change

Filed under: Britain, France, History, Military, Russia, USA — Tags: , , , , , , , — Nicholas @ 02:00

Drachinifel
Published 19 Dec 2018

Today we look at the development of warships from 1815 to 1860.

Want to support the channel? – https://www.patreon.com/Drachinifel​

Want to talk about ships? https://discord.gg/TYu88mt

Music – https://www.youtube.com/c/NCMEpicMusic

January 15, 2021

The Lady Juliana | The 18th-Century All-Women Prison Ship

Filed under: Australia, Britain, History, Law — Tags: , , , — Nicholas @ 02:00

Weird History
Published 13 Nov 2019

A tale as wild as the Seven Seas, the story of the Lady Juliana, a special convict ship full of prisoners sent to Australia, is one of the strangest in the continent’s history. The Lady Juliana had a specific mission: carrying a cargo of female prisoners the British government hoped would help reform the struggling convict colony in New South Wales. This motley crew of British women ultimately had a lasting impact on the history of Australia.

#prisonship #australia #weirdhistory

January 1, 2021

The Dutch Fleet and the Raid on the Medway

Filed under: Britain, Europe, History, Military — Tags: , , , — Nicholas @ 02:00

The History Guy: History Deserves to Be Remembered
Published 3 Nov 2018

Two of the world’s greatest sea powers compete for control of the world’s shipping lanes. At the height of the Age of Sail, the Dutch fleet makes one of the most daring naval raids in history. The History Guy remembers the raid on the Medway.

This is original content based on research by The History Guy. Images in the Public Domain are carefully selected and provide illustration. As photographs of actual events are sometimes not available, photographs of similar objects and events are used for illustration.

The episode relates events that occurred during a period of conflict. All information is provided within historical context and is intended for educational purposes. Those who do not learn from history are doomed to repeat it.

Patreon: https://www.patreon.com/TheHistoryGuy

The History Guy: History Deserves to Be Remembered is the place to find short snippets of forgotten history from five to fifteen minutes long. If you like history too, this is the channel for you.

Awesome The History Guy merchandise is available at:
teespring.com/stores/the-history-guy

#worldhistory #militaryhistory #thehistoryguy

December 16, 2020

Storm in the Labrador Sea

Filed under: History, Technology — Tags: , , , , , — Nicholas @ 02:00

Draken Harald Hårfagre
Published 20 Aug 2016

8 minutes with the amazing Draken Viking Ship. This is the film we showed in our exhibition tent on the festivals around the Great Lakes, filmed between Greenland and Newfoundland on the crossing of the North Atlantic Ocean.

October 19, 2020

A bowyer talks about authentic longbows

Filed under: Britain, Europe, History, Military, Weapons — Tags: , , , , — Nicholas @ 04:00

Lindybeige
Published 10 Sep 2016

Shot in Visby. I talk to Swedish bowyer Henrik Thurfjell about bows, asking stupid questions so that he sounds comparatively clever.
Support me on Patreon: https://www.patreon.com/Lindybeige

He talks about wood, of hunting, of string, and of bear fat. Many people in the comments have suggested exotic meanings for the mark on the side of the yew bow. The comparatively mundane truth is that the symbol is a combination of the Norse runes for H and T – the bowyer’s initials.

Thanks to Johan Käll for showing me round the re-enactors’ camp.

Picture credits:
By the Mary Rose Trust, CC BY-SA 3.0, https://commons.wikimedia.org/w/index…
By Mary Rose Trust – Mary Rose Trust, CC BY-SA 3.0, https://commons.wikimedia.org/w/index…
By Mary Rose Trust – Mary Rose Trust – official webpage, CC BY-SA 3.0, https://commons.wikimedia.org/w/index…
By Own scan. Photo by Gerry Bye. Original by Anthony Anthony. – Anthony Roll as reproduced in The Anthony Roll of Henry VIII’s Navy: Pepys Library 2991 and British Library Additional MS 22047 With Related Documents ISBN 0-7546-0094-7, p. 42., Public Domain, https://commons.wikimedia.org/w/index…
By the Mary Rose Trust, CC BY-SA 3.0, https://commons.wikimedia.org/w/index…
By the Mary Rose Trust, CC BY-SA 3.0, https://commons.wikimedia.org/w/index…

Buy the music – the music played at the end of my videos is now available here: https://lindybeige.bandcamp.com/track…

Lindybeige: a channel of archaeology, ancient and medieval warfare, rants, swing dance, travelogues, evolution, and whatever else occurs to me to make.

▼ Follow me…

Twitter: https://twitter.com/Lindybeige I may have some drivel to contribute to the Twittersphere, plus you get notice of uploads.

website: www.LloydianAspects.co.uk

July 29, 2020

QotD: Grog in the Royal Navy

Filed under: Britain, Health, History, Military, Quotations — Tags: , , , , — Nicholas @ 01:00

More generally, though, do we have any historical evidence of groups whose alcohol consumption was documented with any confidence, to see how they fared?

Actually, we do, at least as a floor: we know the quantity of the Royal Navy’s spirit ration, which until 1823 was based on half a pint of rum (284 millilitres in foreign) per man per day. We also know its minimum strength, since it was tested by trying to ignite gunpowder soaked in it: it had to be over 57% alcohol by volume (“proof strength”) to pass. That’s sixteen units of alcohol – not per week, but per day – or north of a hundred units a week, just for the issued ration before sailors bought any extra from the purser. (No wonder Jack Tar was jolly back in those days!)

But clearly, we would expect a body of men consuming such suicidally destructive quantities of booze to be physical wrecks, raddled by cirrhosis and disease? As Dr James Lind (he of the discovery that citrus fruits were a sovereign remedy for scurvy) put it,

    It is an observation, I think, worthy of record that fourteen thousand persons, pent up in ships, should continue, for six or seven months, to enjoy a better state of health upon the watery element, than it can well be imagined so great a number of people would enjoy, on the most healthful spot of ground in the world.

(For context, around this point the Navy won the battle of Quiberon Bay, with twenty ships – who had less than one man sick per ship).

The ration was halved in 1823, and again in 1850, but for a hundred and twenty years until Black Tot Day in 1970, the Navy still issued nearly thirty units of alcohol a week to everyone on the lower deck (junior rates got theirs diluted, seniors got neat rum). Either folk were hardier back then, or Britannia managed to rule the waves and keep her sailors reasonably healthy despite being a pack of hopelessly addicted alcoholics.

Jason Lynch, “How Much Is ‘Too Much’?”, Continental Telegraph, 2018-05-08.

June 9, 2020

Gunnery, Guns & Ammo in the Age of Sail (1650 -1815)

Filed under: Europe, History, Military, Weapons — Tags: , , — Nicholas @ 06:00

Military History Visualized
Published 4 Nov 2016

» HOW YOU CAN SUPPORT MILITARY HISTORY VISUALIZED «
(A) You can support my channel on Patreon: https://www.patreon.com/join/mhv

(B) Alternatively, you can also buy “Spoils of War” (merchandise) in my online shop: https://www.redbubble.com/people/mhvi…

» SOCIAL MEDIA LINKS «
twitter: https://twitter.com/MilHiVisualized
tumblr: http://militaryhistoryvisualized.tumb…

» SOURCES & LINKS «

Gardiner, Robert: “Guns and Gunnery”, in: Gardiner, Robert; Lavery, Brian: The Line of Battle – The Sailing Warship 1650-1840, p. 146-161

Tracy, Nicholas: “Naval Tactics in the Age of Sail”, in: Stilwell, Alexander: The Trafalgar Companion.

» CREDITS & SPECIAL THX «
Song: Ethan Meixsell – “Demilitarized Zone”

The Counter-Design is heavily inspired by Black ICE Mod for the game Hearts of Iron 3 by Paradox Interactive
https://forum.paradoxplaza.com/forum/…

April 4, 2020

Eighteenth century health improvements through “ventilators”

Filed under: Britain, Health, History, Technology — Tags: , , , , — Nicholas @ 03:00

In the latest Age of Invention newsletter, Anton Howes relates how a mistaken belief still led to a significant improvement in health:

The west view of Newgate Prison, circa 1810, by George Shepherd (1784-1862).
Wikimedia Commons.

One of the most worrying diseases of the mid-eighteenth century was typhus. We now know that it is spread by lice or fleas, but at the time, like so many other diseases, it was thought to be caused by noxious air — “malaria”, for example, literally means “bad air”. This was not a silly theory. It was based on empirical observation, which perhaps explains why the belief in such noxious miasmas persisted for so long — well into the late nineteenth century, if not the early twentieth, before finally being ousted by germ theory. Our ancestors were not stupid, no matter how strange their beliefs might appear in hindsight. (Also take alchemy, or the belief that some animals spontaneously generated.)

The Central Tower of the Palace of Westminster is actually a disguised ventilator.
Photo by Cary Bass via Wikimedia Commons.

Typhus fit the miasma theory especially well because it frequently appeared in confined spaces, like ships’ holds, prisons, mines, workhouses, and hospitals. The disease was thus often called “gaol fever”, or “hospital fever”. And there was the fact that at least one of the solutions designed to combat miasmas, the ventilator, actually seemed to work. This ventilator was not the kind that is in such high demand right now, used to help feed oxygen into patients’ lungs, but instead a machine used to get the air flowing in and out of confined spaces — like a 1740s air-conditioning unit.

At first glance, removing the stale air from a space shouldn’t do anything against typhus. But mortality declined drastically in the prisons and ships to which the ventilator was introduced. It halved the number of deaths per year in Newgate prison, where the bellows-like machinery was powered by a windmill, and the inmates of the Savoy prison fared even better. On ships, too, mortality declined among mariners, passengers, soldiers, and especially among the group that suffered most from long voyages across the eighteenth-century Atlantic: slaves.

But it’s not clear exactly why. After all, the ventilator did not kill the typhus-ridden lice or fleas. I have a few theories as to what must have been going on. Perhaps, by improving the supply of oxygen to confined spaces, people’s bodies were simply better served to deal with all manner of diseases. Surgeons aboard slave ships sometimes noted that, without proper ventilation, many slaves would simply die in the night of suffocation. Or perhaps the ventilator’s effectiveness had something to do with its drying effect. The machine was used to prevent grain stores from becoming humid, thus staving off damp-loving weevils. The ventilators might thus have staved off typhus through a similar means: although I’m not so certain about body lice, humid conditions are preferred by fleas. Regardless of the real reasons, the ventilators worked, and even when they did not reduce mortality, they made confined spaces more bearable for those who had to endure them. Ship captains reported that they did not even have to force their sailors to pump the ventilator’s bellows, because they liked the cool air so much. Ventilators were soon installed in the House of Commons, and in many of London’s theatres.

From the Wikipedia entry on architectural ventilation:

The development of forced ventilation was spurred by the common belief in the late 18th and early 19th century in the miasma theory of disease, where stagnant ‘airs’ were thought to spread illness. An early method of ventilation was the use of a ventilating fire near an air vent which would forcibly cause the air in the building to circulate. English engineer John Theophilus Desaguliers provided an early example of this, when he installed ventilating fires in the air tubes on the roof of the House of Commons. Starting with the Covent Garden Theatre, gas burning chandeliers on the ceiling were often specially designed to perform a ventilating role.

Mechanical systems
A more sophisticated system involving the use of mechanical equipment to circulate the air was developed in the mid 19th century. A basic system of bellows was put in place to ventilate Newgate Prison and outlying buildings, by the engineer Stephen Hales in the mid-1700s. The problem with these early devices was that they required constant human labour to operate. David Boswell Reid was called to testify before a Parliamentary committee on proposed architectural designs for the new House of Commons, after the old one burned down in a fire in 1834. In January 1840 Reid was appointed by the committee for the House of Lords dealing with the construction of the replacement for the Houses of Parliament. The post was in the capacity of ventilation engineer, in effect; and with its creation there began a long series of quarrels between Reid and Charles Barry, the architect.

Reid advocated the installation of a very advanced ventilation system in the new House. His design had air being drawn into an underground chamber, where it would undergo either heating or cooling. It would then ascend into the chamber through thousands of small holes drilled into the floor, and would be extracted through the ceiling by a special ventilation fire within a great stack.

Reid’s reputation was made by his work in Westminster.

« Newer PostsOlder Posts »

Powered by WordPress