A national bilingual digital heritage commemoration exploring the defining moments, innovations and stories that have shaped Canada’s nuclear history — from research and medicine to clean energy and global impact.
Canadian Innovation. Global Impact.






For more than seven decades, Canada has played a significant role in the development of nuclear science and technology — advancing research, medical innovation and reliable energy production.
Planned to coincide with the 75th anniversary of Atomic Energy of Canada Limited (AECL), the project will use this milestone as a lens through which to explore 10–15 defining moments in Canada’s nuclear history.
From pioneering nuclear research to the development of CANDU technology, Canada’s nuclear story has helped shape how we generate electricity, advance scientific discovery, and diagnose and treat disease.
That CANDU Spirit is being developed to commemorate this remarkable history by exploring the innovations, people and stories that have contributed to Canada’s nuclear legacy and its influence at home and around the world.

At the heart of That CANDU Spirit will be a carefully curated collection of 10–15 defining moments drawn from more than 75 years of Canadian nuclear history.
These moments will explore the discoveries, innovations, challenges and people that helped establish Canada as a leader in nuclear research, medical isotope production, cancer diagnosis and treatment, and electricity generation — while also uncovering important stories that may be less familiar to Canadians.
The final selection will be developed through consultation and guided by CanHist’s Curatorial Thinking framework and the 11 Guiding Principles of Learning for Two-Eyed Seeing, helping ensure that the project considers multiple perspectives and asks not only what happened, but why these moments matter.

The defining moments of Canada’s nuclear history raise important questions about innovation, health, energy, leadership and the stories we preserve. These questions will help guide the research, learning and storytelling of That CANDU Spirit.

How did the closure of the Chalk River NRU in 2018 affect Canada’s nuclear story?

How has Canada’s nuclear story transformed cancer diagnosis and treatment, particularly for women and children?

What made Canada a world leader in the production of medical radioisotopes?

How can Canada’s nuclear story contribute to conversations about climate change, energy security and climate-related anxiety?

Over 75 years, how has Canada contributed to global progress in nuclear research and development and influenced innovation around the world?

Which defining moments reveal the untold stories of Canada’s nuclear history — and deserve a place in That CANDU Spirit?
At the centre of That CANDU Spirit will be a bilingual digital StoryMap that brings Canada’s nuclear history to life through 10–15 defining moments.
Using interactive maps, archival material, images and digital storytelling, visitors will be able to explore how these moments connect to communities, research centres, medical breakthroughs and places across Canada — while discovering stories that may not appear in traditional accounts of our nuclear history.
The project will also invite Canadians to explore microhistorical stories — the personal, local and community experiences that help reveal the human side of Canada’s nuclear story.

That CANDU Spirit will extend beyond the digital StoryMap with a collection of free bilingual learning resources for Canadian classrooms, designed to support learning objectives found across provincial curricula.
These resources will encourage inquiry rather than simply provide answers, helping young learners explore nuclear history through science communication, historical thinking and interdisciplinary STEAM learning.
Learning activities will draw on CanHist’s Curatorial Thinking framework and the 11 Guiding Principles for Learning with a Two-Eyed Seeing approach, encouraging students to examine evidence, consider different perspectives and communicate complex ideas in meaningful ways.

Ask meaningful questions and investigate evidence.

Bring history, science, health and technology together.

Use digital tools to communicate learning in new ways.

Consider multiple perspectives and stories too often unheard.
From consultation and research to a national digital commemoration.
That CANDU Spirit is planned as a year-long national project, moving from consultation and curation in spring 2027 to the release of its bilingual digital StoryMap in January 2028.
Promotion and outreach begin, followed by stakeholder consultation and the development of criteria to guide the selection of Canada’s defining nuclear moments.
Research, shortlisting and curation of the defining moments take place, followed by the launch of the bilingual project website and development of the national digital StoryMap and bilingual classroom learning resources.
StoryMap testing and national engagement begin, while microhistorical stories and project contributions are gathered and curated from across Canada.
The That CANDU Spirit StoryMap is released nationally on January 1, 2028, followed by continued promotion and engagement through March 2028.
That CANDU Spirit will bring together the people, discoveries and defining moments that have shaped more than 75 years of Canadian nuclear history.
As the project develops, new stories, learning resources and opportunities to explore Canada’s nuclear legacy will be shared — connecting the innovations of the past with the questions, challenges and possibilities of the future.
Use of the CANDU name and related project branding is subject to permission from AtkinsRéalis.
Darlington Nuclear Generating Station — Photo by Robert T Bell, via Wikimedia Commons. Licensed under CC BY 2.0. Cropped for website display.
NRX Reactor, Chalk River, Ontario, March 1955 — Photo by Chris Lund, Library and Archives Canada. Copyright expired / public domain. Cropped for website display.
Cernavodă Nuclear Power Plant, Romania, December 2024 — Photo by Martin Klingenboeck / IAEA, via Wikimedia Commons. Licensed under CC BY 2.0. Cropped for website display.
NRU Reactor, Chalk River, 1957 — Photo by Gar Lunney. Canadian Museum of Contemporary Photography fonds, National Gallery of Canada / Library and Archives Canada. Public domain.
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