Currents of time

Oceans cover 71% of our planet’s surface, yet we tend to treat these enormous ecosystems as spaces disconnected from history.

As a historian of Asia and the Pacific, I seek ways to understand the mutually transformative relationship between maritime and terrestrial communities, and between the human and the oceanic realms.

Welcome to my website

My name is Jonas and I’m a historian of the turbulent 19th century. In my research and teaching at the University of Zurich, I specialize in maritime and environmental history, with a broader focus on maritime East Asia as a part of the Pacific World.

On this website, you can find information on my research, teaching, and public-facing activities. If you would like to learn more, please don’t hesitate to get in touch.

ヨナス・ルエグのウェブページへようこそ

私はチューリッヒ大学で19世紀の激動に揺れたグローバル・ヒストリーを研究しています。様々なプロジェクトで、東アジア・太平洋世界の海洋環境下で日本の「近代化」の理解を深めております。

本ページでは、私の研究活動についての情報をご覧いただけます。ご質問等がございましたら、日本語でも対応致しますのでお気軽にご連絡ください。

This big-picture narrative of modern Japan embeds the archipelago’s history in its maritime context. Foregrounding the Kuroshio Current in the Pacific, Jonas Rüegg demonstrates how currents, winds, and animals created a dynamic context to economic, intellectual, and geopolitical reinventions of Japan over the past four centuries. He draws up a novel geography of conflicts and competitions in the making of ‘modern’ Japan, one that underlines little known actors, sites, and events which have previously been treated as peripheral. This book offers a framework that transcends conventional spatial and temporal categorizations of early modern and modern, shogunal and imperial, insular and global. Guiding the reader from seventeenth-century Pacific explorations to the “opening” of Japan by whalers, coolies, and castaways, and on to the competition over remote islands, Rüegg offers a greater perspective on the role of oceans in the Anthropocene. This title is also available as Open Access on Cambridge Core.

Read the discussion of The Kuroshio Frontier in the 2025 Christmas issue of The Economist.

My Publications

The local is global. My projects explore local historical experiences as embedded in a web of social and environmental connections across Asia and the Pacific.

Here, you may find a list of publications representative of my palette of interests, reaching from the histories of science, ecology, and economy to geopolitics and collective memory in the age of climate change.

Review of Yamamoto Takahiro’s “Demarcating Japan” (Harvard, 2023) in Pacific Affairs

Oceanic Japan––Islands of the Kuroshio Froniter, or: Building the Infrastructure of an Archipelagic Empire

“Oceanic Knowledge and National Space-Time in Pacific History,” in: Verge: Studies in Global Asias 10, no. 2 (2024): 111–37.

Uhren und Kanonen für ein Reich um Umbruch, in: NZZ Geschichte 51 (2024), 68–77.

What Japan’s Past Disasters Can Teach about the Age of Climate Change

Drugs and the Politics of Consumption in Japan

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Ongoing Research Projects

My ongoing projects underliner that East Asian experiences are central to understanding global reconfigurations of culture, ecology and politics that are often subsumed as “the Anthropocene.”

I study archives and sub-elite experiences that illustrate how taking seriously conventional and nonconventional archives of divergent human experiences – textual, material and conceptual – becomes essential to navigating the challenges of a globalized world.

The Boreal Pacific as a Middle Ground of Eurasian Science (book project in progress)

Japanese History in Hydrological Dimensions.

The Search for Modern Micronesia––Star-Shaped Genealogies of a Colonial Past

Synthetic Nitrogen and the Dependencies of Modern Growth: Global Japan in the Creation of Unsustainable Infrastructures, 1700 to present.

The Evolution of Kappa, or: Science and Environmental Change in the History of a Fictive Species in Japan

“Pictograms and Knot-Ropes: Administrative Records in the Periphery of Early Modern Ryukyu.”

Public Outreach

Studying history means to unearth forgotten realities, to look for the less obvious, and to emerge from the archives with new perspectives on the challenges of the present. This process is essential for critical and informed public debates.

Here you may find a list of past and upcoming events at which I present my findings to audiences within and beyond the academic community.

Mar. 25. 2026: Book Launch at the Asia Society of Switzerland

“The Kuroshio Frontier” discussed in The Economist

“The Kuroshio Frontier” @ Leipzig University ReCentGlobe

Davide Toschi wins UZH Semester Prize for spring 2025

UZH Students Present at Biennale di Venezia

Kwansei Gakuin University Special Lecture

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Teaching

The study of history is an exercise in critical questioning and rigorous fact-checking. It is also a personal journey of creative exploration, public outreach and democratic conversation.

On this page, you may find information and resources related to my past and ongoing teaching activities.

  • 2024 Spring: “BA Research Seminar: Art as a Means of Historical Inquiry” – UZH History Department, Cross-listed at the Zurich University of the Arts (ZHdK).

UZH Course Catalogue

In this inter-university teaching collaboration between the University of Zurich (UZH) and the Zurich University of the Arts (ZHdK), we develop didactical tools for historians and artists to explore each other’s fields and inspire critical ways of engaging with the past. Over four semesters, UZH undergraduates collaborate with instructors and students from ZHdK as an inter-university team and develop the contents and strategies necessary to teach historical research as a creative and exploratory process. Unlike conventional uses of art as a source of information in historiography, we engage in artistic work as a cognitive process that helps identify tensions, voices and perspectives otherwise hidden by the archive.The materials created during the funding period will be made available on our prospective online platform. Teaching segments include mapping, storytelling, audience engagement, and non-textual communication around specific historical problems. The segments are implementable as semester-long curricula, or as individual teaching blocs in research design workshops. Built on a solid foundation of critical questioning, analytical writing and multivariant problem solution –– the bedrock of the humanities -– the projects we pursue shall stimulate scientific outreach, civil engagement, and creative problem solving beyond the humanities.

 

  • 2024 Summer School: “Art as a Means of Historical Inquiry: The Living Environment of an Organic Farm” – UZH History Department and the Zurich University of the Arts (ZHdK). June 10–14, 2024, Hof Blum, Samstagern ZH (Switzerland).

UZH Course Catalogue

This inter-university workshop brings together historians and artists to explore each other’s fields and inspire critical ways of engaging with the past. Developing and realizing small projects as interdisciplinary groups, historians collaborate with the program in Transdisciplinary Studies in the Arts at ZHdK. Inter-university teams identify and develop essential questions and strategies necessary to practice historical research as a creative and exploratory process. Our colleagues from ZHdK are instructors, graduate students and professional artists in a broad range of fields, including photography, visual arts, music, theater, production management, and curatorial studies. Familiarizing ourselves with the history of the living environment, we engage in artistic work as a cognitive process that helps identify tensions, voices and perspectives otherwise hidden by the archive.

 

  • 2025 Spring: MA Methods Seminar “Experiences of Migration and Displacement: Art as a Means of Historical Inquiry” – History Department.
    UZH Course Catalogue

 

Archival work leads historians to the boundaries of the knowable. This interdisciplinary class offers historians and artists the opportunity to collaborate and explore how the methodological interaction of their respective fields can inspire new ways to engage with fragments of the past. By revisiting traditional definitions of “archives,” we seek new possibilities to analyze historically conditioned aspects of the present. Focusing on modern histories of migration and displacement, we will explore different ways of observing, asking and analyzing. What is an archive? What interests and power relations have left their imprint on records of the past? How do we tell the story of those absent from the archive? How do our possibilities as artists and historians change as we explore new tools and media? These are the most central questions around which this class evolves.

We convene periodically with a class in the Program in Transdisciplinary Studies in the Arts at ZHdK to help students combine classical research tasks with the challenge of processing glimpses of the past into informed, critical and personal interactions through art. Semester portfolios consist of a documented artistic process and a reflection that positions this process in a context of historiographical problems. We encourage participants to bring in their own research topics and revisit their sources in collaboration with our ZHdK colleagues. Artistic contributions can include photographic essays, maps, drawings, performances, or interactive digital projects that help explore questions otherwise unasked. The symbiosis of art and humanities shall create a wider epistemic space and expand the historian’s toolset beyond the traditional limitations of our field.

  • 2026 Spring: BA Research Seminar “The Japanese Empire in Ecological Dimension” – History Department.
    UZH Course Catalogue

 

  • 2026 Spring: Base Module II: “Expository and Analytical Writing Practice .” – History Department.
    UZH Course Catalogue

 

  • 2025 Fall: BA Research Seminar “Japan in the Early Modern World” – History Department.
    UZH Course Catalogue

 

  • 2025 Fall: Proseminar 2 “Crises as Transformative Processes” – History Department.
    UZH Course Catalogue
  • 2025 Fall: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.

 

  • 2025 Spring: MA Methods Seminar “Experiences of Migration and Displacement: Art as a Means of Historical Inquiry” – History Department.
    UZH Course Catalogue

 

  • 2025 Spring: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.
    UZH Course Catalogue

 

  • 2024 Fall: BA Research Seminar “The Japanese Empire in Ecological Perspective” – History Department.
    UZH Course Catalogue

 

  • 2024 Fall: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.
    UZH Course Catalogue

 

  • 2024 Spring: “BA Research Seminar: “Mapping Pacific History.” – History Department.
    UZH Course Catalogue

 

  • 2024 Spring: “BA Research Seminar: Art as a Means of Historical Inquiry” – UZH History Department, Cross-listed at the Zurich University of the Arts (ZHdK).
    UZH Course Catalogue

 

  • 2024 Spring: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.
    UZH Course Catalogue

 

  • 2023 Fall: “Proseminar 2: Konwledege, Politics, and Environmental Disaster: Global Perspectives on Historical Crises.” – History Department.
    UZH Course Catalogue

 

  • 2023 Fall: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.
    UZH Course Catalogue

 

  • 2023 Spring: “BA Seminar: Empire and Environment in the Making of the Modern Pacific.” – History Department.
    UZH Course Catalogue

 

  • 2023 Spring: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.
    UZH Course Catalogue

 

  • 2022 Fall: “Proseminar 1: ‘Natural’ Disaster? Global Histories of Environment, Knowledge and Society in Moments of Crisis.” – History Department.
    UZH Course Catalogue

 

  • 2022 Fall: “MA/PhD Colloquium in Global History” – History Department. Co-teaching with Martin Dusinberre.
    UZH Course Catalogue
  • 2023 Spring: Grade 9, History immersion colloquium, “Biography as History.”
  • 2023 Spring: Grade 11, History immersion colloquium, “The History of Japan.”
  • 2023 Fall: Grade 9, History immersion colloquium, “My History Diary.”
  • 2023 Fall: Grade 10, History immersion colloquium, “The World of the Samurai.”
  • 2024 Spring: Grade 9, History immersion colloquium, “The World of the Samurai.”
  • 2024 Spring: Grade 10, History immersion colloquium, “Asia in the 20th century.”
  • 2021 Spring: History E-1842: “East Asian Environments” – Harvard Extension School. Main instructor: Ian J. Miller.
  • 2020/21: Assistant Director of Undergraduate Studies – Concentration in East Asian Studies, Harvard College.
  • 2019 Spring: Societies of the World 43: “Japan’s Samurai Revolution” – Harvard College. Main instructor: David L. Howell.

 

Departmental Websites

Harvard EALC Department
Harvard Early Modern World Network

Collaboration

In a globalized environment, informed choices are based on reliable information and culturally sensitive analyses. As a researcher and intercultural communicator, I collaborate on a variety of projects in the realms of political analysis, science communication and cultural diplomacy.

Besides audience-specific content creation in English, Japanese, German and Italian, I am also active as a translator, project developer and public speaker in the contexts outlined below.

Analytical Writing

Creating specialized contents and developing communication strategies for applied and academic and project proposals.

Research & Strategy

Multilingual research for strategy, communication, and and fundraising.

Science Communication

Presenting complex contents and engaging diverse audiences with academic, policy and business backgrounds.

Project Management

Intercultural networking, competence matching, and collaboration management.

Multilingual Publishing

Specialized translating and interpreting, as well as editing and peer reviewing in English, Japanese, German and Italian.

Curriculum & Syllabus Design

Curating curricula, text books and digital educational tools in the fields of history, language acquisition, and critical media competence for high school, college and lifelong education.

Contact me

Thank you for your interest in my work. If you have any questions or wish to know more about my projects, please don’t hesitate to contact me.

Customers & Partners

Embassy of Switzerland in Japan
Embassy of Switzerland in Japan
Asia Society
Asia Society
Kyoto University of Advanced Studies
Kyoto University of Advanced Studies
Harvard Extension School
Harvard Extension School
Freies Gymnasium Zurich
Freies Gymnasium Zurich
NZZ Geschichte
NZZ Geschichte
Kokugakuin University
Kokugakuin University
Zurich University of the Arts
Zurich University of the Arts
Harvard Yenching Library
Harvard Yenching Library
Daigaku Shorin
Daigaku Shorin
Takeda Pharmaceutics
Takeda Pharmaceutics
Whitebook
Whitebook