science

Jacques Ancel

Jacques Ancel is a science 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 Jacques Ancel rather than just read about it. In short: Jacques Ancel (22 July 1879 in Parmain, Val-d'Oise – 1943 Alloue Charente) was a French geographer and geopolitician. He was the author of several books, including Peoples and Nations of Balkans: political geography (1926) and Geopolitics (1936).

Key takeaways

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

Reference excerpt

Jacques Ancel (22 July 1879 in Parmain, Val-d'Oise – 1943 Alloue Charente) was a French geographer and geopolitician. He was the author of several books, including Peoples and Nations of Balkans: political geography (1926) and Geopolitics (1936). After studying history and geography and professing as a teacher, Ancel was drafted to fight in World War I. Wounded three times, he was detached to the Headquarters of the French Army's Oriental Corps (fighting in the Ottoman Empire and the Balkans). After the war, he helped mediate the tense relations between Yugoslavia and Bulgaria. In 1930, Ancel obtained his doctorate with the thesis La Macédoine, étude de colonisation contemporaine ("Macedonia, a study in contemporary colonization"). He taught at the University of Paris' Institute of Higher International Studies, and was a corresponding member of the Romanian Academy and of other scientific forums. He was a knight of the Légion d'honneur. Ancel was imprisoned in Drancy and Royallieu-Compiègne internment camps during World War II due to his Jewish background. He died of complications from his poor treatment in 1943, and was officially declared Mort pour la France.

Works 1901, Une page inédite de Saint-Simon. 1902, La Formation de la colonie du Congo Français (1843–1882), Paris, Bulletin du Comité de l'Afrique Française. 1919, L'unité de la politique bulgare, 1870–1919, Editions Bossard. 1921, Les Travaux et les jours de l'Armée d'Orient. 1915–1918. 1923, Manuel historique de la question d'Orient (1792–1923), Delagrave. 1926, Peuples et nations des Balkans (réédité par CTHS en 1992). 1929, Histoire contemporaine depuis le milieu du XIXe siècle (avec la collaboration d'Henri Calvet). Manuel de politique européenne, histoire diplomatique de l'Europe (1871–1914), PUF. 1930, La Macédoine, étude de colonisation contemporaine. 1936, Géopolitique, Paris, Delagrave. 1938, Géographie des frontières, préface d'André Siegfried, Paris, Gallimard. 1940, Manuel Géographique de politique européenne. 2. L'Allemagne, Paris, Delagrave. 1945, Slaves et Germains, Paris, Librairie Armand Colin, 1945.

References

Robert Specklin, « Jacques Ancel 1882-1943 », In Freeman T.W., Pinchemel Ph. (ed.), Geographers Biobibliographical Studies, vol. 3, London, Mansell, 1979, p. 1-6. Florian Louis, « Jacques Ancel, itinéraire d'un idéaliste en géopolitique », in Hervé Coutau-Bégarie et Martin Motte (dir.), Approches de la géopolitique, Paris, Economica, 2015 (2e éd.), p. 493-519. Nicolas Ginsburger, « « Témoin contre la Barbarie » : les combats de Jacques Ancel (1938-1946) », in Nicolas Ginsburger, Marie-Claire Robic et Jean-Louis Tissier (dir.), Géographes français en Seconde Guerre mondiale, Paris, Éditions de la Sorbonne, 2021, p. 315-330. Nicolas Ginsburger, « Ratzel contre la géopolitique? Référence allemande et géographie politique dans la géographie française de l'entre-deux-guerres », Geographica Helvetica, vol. 78; n°1, 16 février 2023, p. 65-74, https://doi.org/10.5194/gh-78-65-2023 [archive]

Worked examples

Example 1 — a first encounter with Jacques Ancel

Start with the simplest possible case. Write down what Jacques Ancel claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Jacques Ancel 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 Jacques Ancel 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 Jacques Ancel

In research: Jacques Ancel appears in science 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 Jacques Ancel 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: Jacques Ancel is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1879 births, 1942 deaths, 20th-century French historians, so understanding it makes those chapters shorter.
In everyday life: Look for Jacques Ancel 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 Jacques Ancel in 20 minutes

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

Frequently asked questions

What is Jacques Ancel in simple terms?

Why does Jacques Ancel matter?

Because it connects several science 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 Jacques Ancel?

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 Jacques Ancel.