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Potato revolution

Potato revolution is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Potato revolution rather than just read about it. In short: The "Potato revolution" (in German, Kartoffelrevolution) is the name given to the food riot that took place in the Prussian capital Berlin between April 21 and April 22/23, 1847. This was triggered by failed harvests due to the then-ongoing European potato failure, which also caused the Great Famine in Ireland as well as famine crises and increased food prices in other European countries.

Potato revolution — main illustration
Potato revolution — illustration

Key takeaways

  • Potato revolution belongs to biology; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Potato revolution to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Potato revolution from memory before moving on to harder problems.

Reference excerpt

The "Potato revolution" (in German, Kartoffelrevolution) is the name given to the food riot that took place in the Prussian capital Berlin between April 21 and April 22/23, 1847. This was triggered by failed harvests due to the then-ongoing European potato failure, which also caused the Great Famine in Ireland as well as famine crises and increased food prices in other European countries. Another reason was the social misery of large sections of the urban population. The revolt, which was also directed against the widespread fraudulent practices of Berlin's bakeries and butchers, was put down by the military. Like the First United Parliament of Prussia, which had opened shortly before, the potato revolution was also part of the prehistory of the Berlin March Revolution of 1848.

Terminology and classification The term "potato revolution" was coined by contemporaries. However, it was also used for other riots before and after, such as in 1844 in Newcastle in the Limerick area or in 1872 in Tarnow near Lemberg. In his work Berliner März 1848, the writer Adolf Streckfuß (1823–1895) also used this term to describe the revolt. It is based on the fact that the hunger and social revolt began with the looting of potato stalls, but hardly does justice to the events, as the insurgents did not only attack potato stalls. The protest also affected bakeries and butchers as well as "localities and status symbols of wealthy Berlin citizens" (Rüdiger Hachtmann). The "potato revolution" was one of 193 known hunger riots that shook the German Confederation in 1847. 65 percent of these uprisings took place on Prussian soil; only its western provinces were largely spared. Manfred Gailus estimates that tens of thousands of people actively participated in hunger riots in the German states in 1847. The Berlin "potato revolution" was a mixture of different forms of protest: The initial "market riot" developed into a broader attack on grocery stores. According to political scientist Wilhelm Bleek, while the protests in populous cities (which were growing rapidly due to immigration) such as Berlin and Stuttgart adopted features of a "violent power struggle with the authorities and the wealthy", the events in small towns were often limited to a "redistribution" of food. In the German states, food riots were the "main form" of social protest between 1840 and 1850. Comparable hunger crises can only be found in the 1790s and 1816/1817.

Causes Three factors were decisive in bringing about the Berlin "potato revolution": firstly, the potato and grain harvest of 1846 in Prussia was on average 30 to 50 percent lower than in previous years. The potato pest Phytophthora infestans, which was found in North America, had already been introduced to Europe in 1845. In the same year, this fungus caused major damage to the fields in the western provinces of Prussia. The eastern provinces were only affected in isolated cases due to the weather conditions. In Ireland, which was particularly susceptible due to its rainy summer months and temperate winters, the fungus triggered the so-called Great Famine. The potato tubers often rotted while still in the ground. In 1846, the failure of the potato harvest in Prussia was accompanied by poor rye and wheat yields due to the exceptionally bad weather conditions: heavy rain in April and subsequent drought. In the Rhineland, the rye yield fell by around 50 percent in 1846, in Silesia by as much as 60 percent. Secondly, the Prussian government and the city administrations reacted inadequately to the crop failure. To prevent social unrest, grain stocks had been bought up early in all German residential cities - except Stuttgart and Berlin. It was not until January 1847 that the Prussian government commissioned Liedke, a private secretary inexperienced in agricultural trade, to buy up Russian grain. He then purchased goods that turned out to be of inferior quality. On arrival at the port of Stettin, it became clear that the grain was spoiled. The edible part of the Russian grain that was still milled was stretched by adding barley and corn flour. For its part, the Berlin city council had already petitioned the Prussian King Friedrich Wilhelm IV in October 1846 to ban the export of grain, potatoes and spirits.However, the Prussian Minister of the Interior, Ernst von Bodelschwingh, replied that the petition had been submitted without the knowledge of the Berlin magistrate. Because of this formal error, it had not been passed on to the king. The resulting shortage of food in the city caused the price of rye to double in April 1847 and the price of potatoes to rise three to five times. In 1846, five pounds of potatoes cost one Silbergroschen, by the end of January 1847 it was three, and in April five Silbergroschen. This sum was equivalent to half the average daily earnings of most Berliners. As a result, economically weaker groups in the city were affected by hunger and malnutrition even more than before. Thirdly, this trend in the markets was countered by the fact that the state had hardly any means of control. A police decree from 1846 required Berlin bakers to have their price lists checked by a police lieutenant. Accordingly, de jure prices for certain sizes of bread had to be adhered to. In reality, however, these regulations could not be enforced by the market police across the board. In many cases, Berlin bakers therefore evaded the regulations by using inferior materials or falsifying weights. The dissatisfaction of market shoppers over this everyday grievance, which had accumulated over decades, finally erupted in the "potato revolution". The problems mentioned were combined with the generally precarious social situation of large sections of the population. Many families moved from the countryside to the big city. The resulting oversupply of labor depressed wages in Berlin. At the same time, working hours increased, often to 17 hours a day. Child labor was part of everyday life. Even minimal price fluctuations were enough to turn hunger into a mass phenomenon in the city. A financial and industrial crisis led to mass redundancies in Berlin's textile and engineering sectors in 1847. The number of unemployed increased even further.

The riots

… excerpt ends here. Continue reading the full article.

Illustrations

Potato revolution: The lithograph Sturm auf die Kartoffelstände shows an angry crowd attacking potato merchants. Vinzenz Katzler (1823–1882), around 1847 in Vienna.
The lithograph Sturm auf die Kartoffelstände shows an angry crowd attacking potato merchants. Vinzenz Katzler (1823–1882), around 1847 in Vienna.

Worked examples

Example 1 — a first encounter with Potato revolution

Start with the simplest possible case. Write down what Potato revolution claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Potato revolution before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Potato revolution ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Potato revolution

In research
Potato revolution appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Potato revolution in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Potato revolution is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1847 in Prussia, 1847 riots, 19th century in Berlin, so understanding it makes those chapters shorter.
In everyday life
Look for Potato revolution outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Potato revolution in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Potato revolution means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Potato revolution out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Potato revolution in simple terms?

The "Potato revolution" (in German, Kartoffelrevolution) is the name given to the food riot that took place in the Prussian capital Berlin between April 21 and April 22/23, 1847. This was triggered by failed harvests due to the then-ongoing European potato failure, which also caused the Great Famin…

Why does Potato revolution matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Potato revolution?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Potato revolution.

Tags

  • 1847 in Prussia
  • 1847 riots
  • 19th century in Berlin
  • April 1847
  • Economic crises in Europe
  • Food riots
  • History of the potato
  • Riots and civil disorder in Germany
  • Social history of Germany

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