Pick up a drink at any convenience store and glance at the nutrition label on the back, and you will see a line stating exactly how many grams of sugar it contains. The World Health Organization (WHO) recommends reducing the intake of free sugars to less than 10% of total energy intake, and by WHO counts, 116 countries now levy taxes on sugar-sweetened beverages.
Today, sugar is everywhere. It is among the cheapest staples on supermarket shelves, and the U.S. Department of Agriculture projects global production to reach 184.9 million metric tons (raw value) in the 2026/27 crop year. It has become common, inexpensive, and accompanied by health warnings and targeted taxes.
Yet when sugar first arrived in Europe, its place was not on the dining table. It sat on the apothecary shelf.
Timeline at a glance
Asia
- c. 600 Persia establishes methods to extract crystalline sugar from sugarcane juice
Medicine and Luxury
- 1100s Sugar-based medicinal syrups from Islamic medicine transition into Byzantine clinical practice
- 1500s Sugar becomes an elite status symbol in England
Plantations
- 1501–1866 The transatlantic slave trade: about 12.5 million people embarked, about 10.8 million disembarked
- 1733 The Molasses Act: Britain levies 6 pence per gallon on foreign molasses
- 1764 The Sugar Act: Britain lowers duty rates but tightens customs enforcement
- 1791 Uprising begins in Saint-Domingue
Sugar Beet and Price Collapse
- 1801 Achard opens the world's first sugar beet factory
- 1846 Rillieux patents the multiple-effect evaporator; Britain passes the Sugar Duties Act
- 1874 Britain completely abolishes its sugar duties
- 1881–1883 Beet sugar surpasses cane sugar worldwide for the first time
- 1902 The Brussels Convention: signatories agree to eliminate export bounties
Present Day
- 2015 The WHO issues dietary guidelines on free sugars intake
- 2026 116 countries tax sugary drinks; global production projected at 184.9 million metric tons
Why Did Sugar Come to Wear So Many Faces?
Sugarcane and sugar beets have almost nothing in common. One is a giant tropical grass towering well over a person's head, while the other is a pale, stubby root vegetable grown in temperate fields. Yet both store the exact same substance in their tissues: sucrose. That is why, whichever one you extract it from, once refining is complete, you get identical crystals that cannot be told apart.
This single fact forms the backbone of our story. A world where sugar came only from the tropics and a world where it also came from fields in the heart of Europe were entirely different places. In the former, sugar was a precious good brought across oceans. In the latter, sugar was an ordinary commodity stamped out in factories. In between, the price collapsed, and as the price collapsed, consumption jumped by orders of magnitude.
Yet farming and technology were not the only things driving the price of this commodity. Systems like tariffs, preferential treatments, export subsidies, and import quotas shook its price time and again. Much of the history of sugar is the history of tax law. Roughly half of the scenes to come take place not in fields, but in parliaments and treaty halls. Which island grew what, and which country held the refineries, was decided as much by law as by climate.
The story shifts shape four times: from an apothecary's remedy to a royal luxury, from a luxury to an Atlantic-scale plantation crop, and from a plantation crop to a dirt-cheap staple. Today, it is an object for which international bodies recommend intake limits and 116 countries levy taxes. Rarely has a single substance changed its place so many times.
So let's begin by examining that very first place: just how true is the widely repeated claim that "sugar was originally medicine"? It is both the most cited and the most glossed-over chapter in the whole story.
Worth remembering It was institutions, not just technology, that repeatedly changed the price and position of this commodity; only when you know those rules can you see the scenes that follow.
How True Is the Claim That "Sugar Was Originally Medicine"?
This statement is about half true. And the half that misses the mark is even more fascinating.
Let's start with what can be verified. Sugarcane spread from New Guinea to India and Persia, and historical records from the sugar industry note that extracting sugar from cane juice was established in Persia around 600. What happened next is crucial. Islamic medicine turned sugar-based potions and syrups into a systematic practice, and those formulas were translated from Arabic into Greek, passing into Byzantine medicine. A study published in the academic journal Speculum notes that sugar appeared consistently in Constantinople's routine medical practice after the 11th or 12th century—even though actual records of the sugar trade itself appear later.
The same study highlights one more point. Because growing, refining, and transporting sugar required significant expense, a prescription that included sugar was in itself a substantial expenditure on health. It was prized because it was expensive, used sparingly because it was prized, and seemed all the more extraordinary because it was never used casually.
Yet we need to be careful here. Saying "sugar was medicine" does not mean people viewed it as a panacea that cured every disease. Records from The National Archives of the UK list three roles side by side: medieval sugar served as a spice like nutmeg or ginger, a preservative to keep food from spoiling, and an important medicine. It was both a medicinal ingredient and the vehicle that made other remedies easier to swallow. After all, getting someone to swallow bitter medicine was an essential skill in those days.
So it is more accurate to put it this way: when sugar first settled in Europe, its place was not in the kitchen, but in apothecaries and spice shops. It is hard to sum up in a single sentence what illness it was supposed to treat, and it was Islamic medicine that carved out that special place for it.
Worth remembering Half of the popular story was true, with the crucial caveat that sugar was an "apothecary item" rather than a "cure-all."
Until the Queen's Teeth Turned Black
An item from the apothecary soon became an item for display. The very fact that it was expensive became its purpose.
The UK National Archives notes that by the reign of Elizabeth I, sugar had become a status symbol. Paul Hentzner, a traveler from Germany, observed the sixty-five-year-old queen and left a record of her teeth, noting that they seemed blackened from consuming too much sugar. What this well-known anecdote tells us is not about the queen's health, but that being able to consume sugar freely was a visible mark of social status back then. There are goods people desire more simply because they cost more, and for a time, sugar held that exact place.
That place did not last long. The same records note that between 1575 and 1650, as cookbooks grew popular, sugar gradually began turning into an ingredient that more people could afford, and by the 17th century, even some households in London could buy it. What was once an item for the royal court became an item for wealthy homes, and then an item for urban households.
This was not accomplished by sugar alone. Around the same time, tea, coffee, and cocoa established themselves in Europe. All three are bitter drinks if consumed plain. As sugar became cheaper, those beverages sold more, and as those beverages spread, more sugar was needed. They were partners that fueled each other's demand. This is why looking at sugar consumption in isolation makes it hard to explain why it grew so drastically.
Here is what the numbers look like. According to Mintz's figures, annual per capita sugar consumption in Britain was 4 pounds in 1704, 18 pounds in 1800, and 90 pounds in 1900. It grew more than twentyfold across two centuries. But to supply this much, someone had to produce that much somewhere. That is where our next scene begins.
Worth remembering This is where demand was created. How that demand was satisfied leads into the heaviest part of this story.
Why We Count with Two Numbers
When discussing the scale of the transatlantic slave trade, we count with two numbers. This is not simply about having two ways to count, but because each number speaks to a different reality.
The slave trade database operated by Emory University estimates that from 1501 to 1866, about 12.5 million people were forced onto ships in Africa, and about 10.8 million arrived in the Americas after crossing the Atlantic. The former number is called embarkation, and the latter disembarkation. The difference between these two numbers represents the lives lost during the voyage. Citing a figure without specifying which baseline is used makes the statement half-wrong by default. This database only covers transatlantic routes, leaving out routes across the Sahara and through the Indian Ocean.
Where did those who disembarked go? According to the Digital History materials at the University of Houston, 6% of the total landed in what is now the United States, while 60 to 70% landed in Brazil or the sugar colonies of the Caribbean. By Emory University's tally, the number of people brought directly from Africa to present-day U.S. soil was 388,000. Because of the enduring imagery of American slavery, this is where people are most often mistaken.
So how much of this was driven by sugar? We must avoid hasty conclusions here. Slavery predated sugar, and there were also tobacco, rice, cotton, coffee, and mines. What can be confirmed is the scale. Royal Museums Greenwich notes that nearly two-thirds of enslaved people worked on sugar plantations. This is an estimate by historians, not a direct database tally. Therefore, the accurate phrasing is not 'sugar created the slave trade,' but rather 'a substantial share of where this trade was headed was sugar.'
Why sugar, of all things? Once sugarcane is harvested, its sugar content declines over time. The step from cutting in the field to pressing must happen as quickly as possible, which required the fields and the milling and refining facilities to sit right beside each other. Unlike grain, it could not be harvested, stored in a warehouse, and processed later. This requirement forced plantations to expand in scale, creating a structure that kept a vast number of people tied to a single place every harvest season.
Worth remembering This is where we must be most careful in this chapter: simply clarifying the baseline (embarkation, disembarkation, route) makes the narrative far more accurate.
Tariffs on Molasses Set the Rules of the Atlantic
When you boil down sugarcane juice and filter out the sugar crystals, a sticky liquid is left behind. That is molasses. Because sugar still remains in it, fermenting it turns it into alcohol, and distilling that alcohol makes rum. A byproduct that might otherwise have been thrown away at the sugar mill suddenly had a value of its own.
This byproduct became such a huge business that laws were created just for it. In 1733, Great Britain passed the Molasses Act, imposing a duty of 6 pence per gallon on foreign molasses. Records from the U.S. National Park Service note that the purpose of this tariff was not to raise revenue. The goal was to levy a duty high enough to steer the direction of trade toward Great Britain and its colonies. The calculation was to make distillers in the North American colonies buy molasses from British islands rather than French ones simply because of price.
Things did not go as calculated. When tariffs are high, smuggling increases. That is why the Sugar Act—passed on April 5, 1764, and taking effect on September 29 of that year—shifted course. Instead of keeping the duty on foreign molasses at 6 pence per gallon, it lowered it to 3 pence, while drastically tightening enforcement. It stationed customs officials locally, required bonds and cargo manifests for every ship, and directed trials to be held not before local juries, but in the vice-admiralty court in Halifax. It kept high tariffs on foreign refined sugar and banned the importation of foreign rum altogether.
By lowering the tax rate, the actual burden only grew heavier. A law that people could previously get away with ignoring had now become one they were forced to obey. Because this act also placed duties on wine, coffee, and textiles, it was not just a story about sugar. Still, there was a reason it was called the Sugar Act.
The dynamic seen here would repeat itself time and again. A division of labor where colonies produced raw materials while the mother country handled refining and processing was cemented through tariffs. What each side produced was determined not only by soil and climate, but by law.
Worth remembering Here, for the first time, it becomes unmistakably clear that markets were not the only force deciding prices.
What Came After the Most Profitable Colony Stopped
Saint-Domingue, a French colony in the Caribbean, was an island that thrived on sugar and coffee. The U.S. Department of State's Office of the Historian notes that by the 1760s, this colony had become the most profitable in the Americas.
On August 22, 1791, an uprising began here. The fighting went on for more than a decade, and in 1804, Haiti gained independence. It was the second nation in the Americas to achieve independence, following the United States. The most profitable sugar-producing colony had collapsed as an industry.
Slavery was abolished across multiple countries one after another. Yet abolition was not the end of the story. The plantations remained, and the sugarcane waiting to be crushed remained as well. Plantations across British colonies brought in people through another method: indentured labor.
According to figures compiled by a research project at the University of Leeds, about 1.3 million people left South Asia as indentured laborers between 1834 and 1917. Mauritius was the first to begin recruitment in 1834, taking in more than 450,000 people, while Fiji was the last to start in 1879, receiving more than 60,000 people. Trinidad, British Guiana, and Natal were destinations as well. Sugar colonies were unusually prominent on the list. A research paper examining the 1902 Brussels Convention also notes that following emancipation, indentured laborers from China and India had entered plantations across the West Indies.
Indentured labor was not the same as slavery. There were fixed-term contracts and wages. Nor was it the same as voluntary migration, as recruitment practices, contract terms, and the right to return remained controversial for a long time. One thing is certain: as soon as one system ended, another stepped right into its place, and the amount of sugarcane to be crushed never declined.
Worth remembering What replaced the ousted system—if you stop the story at abolition, the next eighty years vanish completely.
Sugar Began Emerging from Temperate Fields
What overturned the board was not politics, but a vegetable. More precisely, it was a chemist who peered closely into that vegetable.
In 1747, the Prussian chemist Andreas Sigismund Marggraf proved that sugar beets contain the exact same sugar as sugarcane. During his lifetime, however, that discovery remained a purely academic achievement. Extracting it was possible, but producing it at an affordable price was not. The vast distance between a discovery and an industry is a recurring theme in this story.
The person who bridged that gap was his student, Franz Karl Achard. In 1801, Achard established the world's first sugar beet factory in Cunern, Silesia. And the timing was right. When Napoleon's Continental Blockade—lasting from 1806 to 1813—cut off Caribbean sugar from reaching mainland Europe, beet sugar factories sprang up across the continent. A substance that had once come only from the tropics began emerging from temperate fields.
Yet the sugar beet lost that opening round. The industry history records cited earlier note that around 1818, after the blockade ended, the price of cane sugar plunged to one-third of its previous level, leaving German beet sugar factories unable to break even. A market opened by politics closes as soon as politics shuts the door.
Meanwhile, production costs were falling on the sugarcane side as well. In 1846, Norbert Rillieux, an engineer from New Orleans, received U.S. Patent 4,879 for his multiple-effect evaporator. Boiling off water from cane juice required continuous heating. By linking multiple vessels together and lowering the pressure in each subsequent one, steam rising from the first container was recycled as heat to warm the next. It was a design where fuel burned once did work multiple times. Far more high-grade sugar could now be produced with the same amount of fuel, and this principle remains the foundation of industrial evaporation processes today. Born in New Orleans in 1806 to an engineer father and an enslaved mother, Rillieux proved the value of his invention by installing an evaporator on a plantation in 1843.
Both sides were now fully primed to become cheaper. All that remained was to see who would slash prices first, and the trigger was pulled not by a factory, but by the tax office.
Worth remembering Discoveries often lie dormant for a long time until politics shakes them awake, and even once awakened, they do not triumph right away.
Behind the Collapse in Prices Lay Export Bounties
In the 19th century, Continental Europe's sugar beet industry drove prices down in an unusual way. Governments collected an excise tax on sugar from domestic consumers, and then refunded that money to producers according to how much they exported. These were called export bounties.
The effect was clear. Because taxes collected at home were channeled back to exporters, a country's sugar could be sold on the world market below production cost. A research paper on the 1902 Brussels Convention notes that in the 1870s, as this bounty system combined with new technologies, sugar from Austria-Hungary and Germany became the cheapest in the world. When France adopted the same method in 1884, a 'bounty war' erupted between the two countries. It was a fight over consumer markets in the United States and Britain.
Prices collapsed. According to figures cited in that same paper, sugar prices fell by about 50% over the dozen-plus years starting in 1872. And sometime between 1881 and 1883, global beet sugar production surpassed cane sugar production for the first time. The paper itself does not specify exactly which year it was.
Britain moved in the opposite direction. With the Sugar Duties Act of 1846, it began phasing out sugar tariffs, eliminating them entirely by 1874. The preferential treatment once enjoyed by West Indian plantation owners was gone. Planters protested, arguing that if Brazilian sugar produced with slave labor entered tariff-free, the West Indian economy would collapse. It was the moment the world's largest sugar consumer market opened its doors wide to the world's cheapest sugar.
What came next is sugar as we know it today. Britain's annual per capita consumption reaching 90 pounds in 1900, as calculated by Mintz, was the direct outcome of this period. As prices fell, consumption exploded. What had once belonged to apothecaries and royal courts found its way into a worker's cup of tea.
The bounty wars were ultimately settled by treaty. On March 5, 1902, a convention was signed in Brussels, where signatory nations agreed to eliminate export bounties and to either ban bounty-fed sugar or impose countervailing duties on it, regardless of which country it came from. It was an effort to level the playing field between beet and cane sugar through international rules.
Worth remembering If technology prepared the ground for lower prices, tax laws delivered the final push. The backbone of this episode comes together here.
What Shakes Sugar Prices Today?
Today, sugar is one of the most widely produced food ingredients in the world. According to the May 2026 forecast by the USDA Foreign Agricultural Service, world production for the 2026/27 crop year is 184.9 million tons on a raw sugar basis, with exports at 62.3 million tons.
The global production map looks like this. By the same forecast, Brazil leads at 42.5 million tons, India at 33.6 million tons, the EU at 14.4 million tons, China at 12.7 million tons, Thailand at 9.5 million tons, and the United States at 8.0 million tons. Sugar beets once briefly took the lead, but today the top two spots belong to countries that grow sugarcane. A single reversal was not a permanent replacement.
One of the factors shaking sugar prices today is, surprisingly, fuel policy. Sugar mills in Brazil decide on the fly whether to direct incoming sugarcane into sugar or ethanol. The USDA notes that after Brazil raised the mandatory blend of anhydrous ethanol in gasoline from 27% to 30%, ethanol demand strengthened, tilting the 2026/27 allocation to 52 for ethanol versus 48 for sugar. When more of that same sugarcane goes toward fuel, the global sugar supply shrinks by that much.
Policy remains right at the center of pricing. According to the same USDA data, India mandates that mills pay farmers a government-set minimum purchase price, while also regulating the volume mills can sell domestically and setting minimum selling prices. Each mill is assigned a specific sugarcane procurement zone, and farmers in that zone must sell to that mill. The United States manages import volumes through quotas. While the methods differ from the eighteenth-century Molasses Act, the dynamic where policy sets the price remains.
And now, this substance has another kind of rule attached to it. On March 4, 2015, the WHO recommended reducing the intake of free sugars to less than 10% of total energy intake, alongside a conditional recommendation that cutting it below 5% would bring additional benefits. Here, free sugars refer to sugars added by manufacturers, cooks, or consumers, as well as sugars naturally present in honey, syrups, and fruit juices. Naturally occurring sugars in fresh fruits, vegetables, and milk are not included. If you leave out this scope and cite only the numbers, it turns into a completely different story.
Worth remembering Where the sugar price news and the dietary recommendations on ingredient labels come from—both are extensions of this story.
What to Watch for in the Next Scene
You don't need to try to predict the future. Instead, guided by the rules this history has revealed, let's summarize what signals to watch so you can be the first to notice when the board begins to move.
First is the crossroads between sugar and fuel. Where Brazilian mills direct their sugarcane dictates global supply. Because this allocation shifts not just with market prices but also with government policies like blending mandates, energy policies in other countries will continue to appear in sugar price headlines.
Second is the direction of policy. Throughout this history, what truly moved prices were mostly tariffs, subsidies, and quotas. Even today, India's procurement prices and sales controls, along with US import quotas, remain firmly in place. When prices swing wildly, checking policy news before weather reports will help you pinpoint the cause much faster.
Third is the point where the nature of taxes is changing. Over the past three hundred years, taxes on sugar were designed to redirect trade or protect domestic industries. Today's growing taxes, however, serve a different purpose. According to WHO data, 116 countries tax sugar-sweetened beverages, yet the median share of taxes in the price of a standard soda is only about 2%. Other high-sugar drinks, such as fruit juices and sweetened milks, are often excluded from taxation altogether. Together, these two numbers demonstrate that having a policy on the books and having it actually work are two very different things.
Fourth is the standing between sugar beets and sugarcane. There was an era when one pulled ahead, and today the reverse is true. Climate conditions, available farmland, and national subsidy programs continue to unsettle this balance. The moment when anyone can declare a winner has not yet arrived.
Finally, just one more thing. What altered sugar's place in this story was almost always something outside of sugar itself: pharmacopeias of Islamic medicine, the Continental Blockade, customs enforcement methods, export bounties, and gasoline blending mandates. Whatever next changes the price and position of this substance will likely come from somewhere outside the news about sugar. Where that might be is well worth watching.
Worth remembering It's not about making predictions, but knowing how to watch: fuel allocation, the direction of policy, the nature of taxes, and the balance between the two crops—these four areas are all you need to watch.
Common misconceptions
Sugar was a food staple from the very beginning.
When sugar first arrived in Europe, it was treated as an apothecary item. Medical syrups and juleps formulated with sugar in the Islamic world passed into Byzantine medicine, and The National Archives in the UK notes that medieval sugar served a triple role as spice, preservative, and medicine. It only became a widespread dietary staple much later.
Enslaved people crossing the Atlantic went primarily to the United States.
Direct arrivals from Africa to what is now the United States numbered 388,000. Digital History from the University of Houston notes that this accounted for just 6% of the total, while 60–70% disembarked in the sugar colonies of Brazil or the Caribbean. The later natural increase of the enslaved population within the U.S. is distinct from the number of people brought across the ocean.
The scale of the transatlantic slave trade can be captured by a single number.
There are two distinct benchmarks. Estimates from the Emory University database indicate that about 12.5 million people were embarked in Africa, while about 10.8 million disembarked across the Atlantic. The difference represents deaths during the voyage. Furthermore, this dataset only covers the transatlantic route. Citing a number without specifying whether it measures embarkation or arrival makes it inherently incomplete.
Abolishing slavery ended labor exploitation on sugar plantations.
After abolition, British colonial plantations turned to indentured servitude. According to a University of Leeds research project, approximately 1.3 million indentured laborers left South Asia between 1834 and 1917. Mauritius began recruitment first, receiving over 450,000 workers, while Fiji recruited last, taking in more than 60,000.
Sugar beets permanently displaced sugarcane.
For a brief period in the late 19th century, global beet sugar production did surpass cane sugar. However, today's top two sugar producers—Brazil and India—rely overwhelmingly on sugarcane. That historical reversal was not a permanent displacement.
Market forces alone have always determined the price of sugar.
Institutions and policy have long steered sugar prices. Tariffs on foreign molasses, preferential trade agreements for West Indian planters, the tariff acts that dismantled those preferences, export bounties based on volume, and international treaties formed to halt those bounties each took turns driving prices. Even today, price floors and domestic release quotas in India alongside tariff-rate quotas in the United States operate alongside market forces.
In one sentence
When sugar first took root in Europe, it belonged to the apothecary rather than the dining table. Medicinal sugar syrups developed in Islamic medicine made their way into Byzantine practice, and because sugar was costly, it quickly transformed into a royal status symbol. Supplying that escalating demand drove the rise of vast sugarcane plantations across the Atlantic. In the transatlantic slave trade, about 12.5 million people embarked from Africa and about 10.8 million disembarked; University of Houston records note that 60–70% of those who survived landed in the sugar colonies of Brazil and the Caribbean. When slavery was abolished, indentured labor stepped in to fill the fields. The decisive crash in sugar prices was engineered not solely by free markets, but by the rise of the sugar beet, aggressive export bounties, and tariff repeal—and as prices plummeted, mass consumption exploded. Even today, the price of sugar remains tethered to Brazilian ethanol mandates and national import quotas and price supports, while a new layer of rules—dietary guidelines and beverage taxes—shapes its modern consumption.
Sources
Every date and figure below is drawn from these sources. Tell us if something looks wrong.
- Documenting Slave Voyages — The Trans-Atlantic Slave Trade Database Emory University Estimates of approx. 12.5 million embarkations, approx. 10.8 million arrivals, and 388,000 transported directly to the modern United States
- Trans-Atlantic Slave Trade — Estimates SlaveVoyages (Emory University) Estimated total embarkations, 1501–1866, with breakdowns by carrying nation
- The history of the transatlantic slave trade Royal Museums Greenwich Estimates that nearly two-thirds of enslaved people worked on sugar plantations
- Digital History — Destinations of the Slave Trade University of Houston 6% to mainland North America, 60–70% to Brazil and Caribbean sugar colonies
- Cross-cultural Transfer of Medical Knowledge in the Medieval Mediterranean — Sugar Syrups from the Islamic World to Byzantium Petros Bouras-Vallianatos, Speculum, Vol. 96, No. 4, 2021 Accounts of sugar regularly appearing in Constantinople's medical practice and sugar prescriptions representing a major expense
- The institutionalisation of free trade and empire — A study of the 1902 Brussels Sugar Convention Michael Fakhri, London Review of International Law, Vol. 2, No. 1, 2014 The Sugar Duties Act of 1846, full duty repeal in 1874, bounty wars, beet sugar overtaking cane in 1881–1883, the ~50% price drop after 1872, and the Brussels Convention
- WHO calls on countries to reduce sugars intake among adults and children World Health Organization Definition of free sugars, recommendation to reduce to below 10%, conditional recommendation below 5%
- Global report on the use of sugar-sweetened beverage taxes 2025 release material World Health Organization Tax status across 116 countries and median tax share of approx. 2%
- Sugar: World Markets and Trade (May 2026) USDA Foreign Agricultural Service 2026/27 global production and export forecasts, country breakdowns, Brazil's ethanol allocation, and India's price floors and release quotas
- Norbert Rillieux — National Inventors Hall of Fame National Inventors Hall of Fame Multiple-effect evaporator, U.S. Patent 4,879, and how its principles became the foundation of industrial evaporation
- Britain Begins Taxing the Colonies: The Sugar & Stamp Acts National Park Service Purpose and tax rates of the 1733 Molasses Act, rate reduction and stricter enforcement under the 1764 Sugar Act
- Indentured labour from South Asia (1834-1917) Striking Women (University of Leeds) Approx. 1.3 million South Asian indentured laborers and scale by destination
- History of sugar — sugar cane and sugar beet Südzucker Group Marggraf's discovery, Achard's first beet sugar factory, expansion during the Continental Blockade, and the subsequent price collapse
- Sugar — Educational Resources The National Archives The three medieval roles of sugar (spice, preservative, medicine), Elizabethan status symbol, and 17th-century expansion
- Sweetness and Power Lecture Notes (Think 53: Food Talks) Stanford University — citing Sidney W. Mintz, Sweetness and Power (1985) Changes in annual per capita sugar consumption in Britain
- The United States and the Haitian Revolution, 1791–1804 Office of the Historian, U.S. Department of State Profitability of Saint-Domingue, the 1791 uprising, and Haitian independence in 1804