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By BBC Radio 4
A world-class seminar, every week.
4.6
51095,109 ratings
The podcast currently has 1,124 episodes available.
The most played episodes among Podcast App listeners.

Misha Glenny delves in to the In Our Time archive to select ten episodes for listeners to revisit. His fourth choice, first released in January 2008, explores how the science of plate tectonics revolutionised our understanding of the planet on which we live. America is getting further away from Europe. This is not a political statement but a geological fact. Just as the Pacific is getting smaller, the Red Sea bigger, the Himalayas are still going up and one day the Horn of Africa will be a large island. This is the theory of plate tectonics, a revolutionary idea in 20th century geology that claimed the continents of Earth were dancing to the music of deep time. A dance of incredible slowness, yet powerful enough to throw up the mountains and pour away the oceans. Plate tectonics, the idea that the earth’s surface moved on a carpet of molten magma, constituted a genuine scientific revolution in geology. It explained why mountains appeared and why earthquakes occurred; it explained the curious distribution of fossils across the globe and finally solved the age old conundrum of why continents such as Africa and South America appeared to fit together like a giant jigsaw puzzle. Plate tectonics has made geologists, and many more besides, profoundly re-think what the Earth was, how it worked and how it related to all the things in it. With: Richard Corfield Visiting Senior Lecturer in Earth Sciences at the Open University Joe Cann Senior Fellow in the School of Earth and Environment at the University of Leeds Lynne Frostick Director of the Hull Environment Research Institute and Professor of Physical Geography at the University of Hull In Our Time is a BBC Studios production Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.

Misha Glenny delves in to the In Our Time archive to select ten episodes for listeners to revisit. His third choice, first released in November 2014, is the Egyptian pharaoh Hatshepsut, whose name means 'foremost of noble ladies'. She ruled Egypt from about 1479 - 1458 BC and some scholars argue that she was one of the most successful and influential pharaohs. When she came to the throne, Egypt was still recovering from a period of turbulence known as the Second Intermediate Period a few generations earlier. Hatshepsut reasserted Egyptian power by building up international trade and commissioned buildings considered masterpieces of Egyptian architecture. She also made significant changes to the ideology surrounding the pharaoh and the gods. However, following her death, her name was erased from the records and left out of ancient lists of Egyptian kings. With: Elizabeth Frood Associate Professor of Egyptology at the University of Oxford Kate Spence Lecturer in Egyptian Archaeology at the University of Cambridge Campbell Price Curator of Egypt and Sudan at The Manchester Museum Producer: Victoria Brignell Reading list: Elizabeth Blyth, Karnak: Evolution of a Temple (Routledge, 2006) Kara Cooney, The Woman Who Would Be King (Crown, 2014) José M. Galán, Betsy M. Bryan and Peter F. Dorman (eds.), Creativity and Innovation in the Reign of Hatshepsut (Oriental Institute of the University of Chicago, 2014) Marc Van De Mieroop, A History of Ancient Egypt (Wiley-Blackwell, 2011) Catharine H. Roehrig, Renée Dreyfus and Cathleen A. Keller, Hatshepsut: From Queen to Pharaoh (Yale University Press, 2005) Catharine Roehrig (ed.), Hatshepsut: From Queen to Pharaoh (Metropolitan Museum of Art, 2005) Joyce Tyldesley, Hatshepsut: The Female Pharaoh (Penguin, 1998) Willeke Wendrich (ed.), UCLA Encyclopedia of Egyptology (University of California, 2010) particularly Peter Brand’s essay, ‘Usurpation of Monuments’ In Our Time is a BBC Studios production Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.

Misha Glenny delves in to the In Our Time archive to select ten episodes for listeners to revisit. His second choice, first released in December 2019, is the history and social impact of coffee. From its origins in Ethiopia, coffea arabica spread through the Ottoman Empire before reaching Western Europe where, in the 17th century, coffee houses were becoming established. There, caffeinated customers stayed awake for longer and were more animated, and this helped to spread ideas and influence culture. Coffee became a colonial product, grown by slaves or indentured labour, with coffea robusta replacing arabica where disease had struck, and was traded extensively by the Dutch and French empires; by the 19th century, Brazil had developed into a major coffee producer, meeting demand in the USA that had grown on the waggon trails. With Judith Hawley Professor of 18th Century Literature at Royal Holloway, University of London Markman Ellis Professor of 18th Century Studies at Queen Mary University of London And Jonathan Morris Professor in Modern History at the University of Hertfordshire Producer: Simon Tillotson Reading list: Brian Cowan, The Social Life of Coffee: The Emergence of the British Coffeehouse (Yale University Press, 2005) Benoit Daviron and Stefano Ponte, The Coffee Paradox: Global Markets, Commodity Trade and the Elusive Promise of Development (Zed Books, 2005) Markman Ellis, The Coffee House: A Cultural History (Orion, 2004) Ralph Hattox, Coffee and Coffeehouses: The Origins of a Social Beverage in the Medieval Near East (University of Washington Press, 1985) Jonathan Morris, Coffee: A Global History (Reaktion, 2018) Mark Prendergast Uncommon Grounds: The History of Coffee and How It Transformed our World (Basic Books, 2010) Claudia Roden, Coffee (Faber, 1977) William Clarence Smith and Steven Topik (eds.), The Global Coffee Economy in Africa, Asia, and Latin America, 1500-1989 (Cambridge University Press, 2003) William H. Ukers, All About Coffee (first published 1935; Martino Fine Books, 2011) Anthony Wild, Black Gold: The Dark History of Coffee (Harper Perennial, 2010) In Our Time is a BBC Studios production Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.

Misha Glenny and guests discuss a familiar feature of our beaches: seashells, from their astonishing shapes and patterns that teach us about Earth’s oceans, to the ways that humans have treasured shells throughout history. Seashells appear in the mythologies of countless cultures across the world - think of Botticelli’s Venus emerging from a giant scallop shell, Vishnu's sacred horn panchajanya, or the Aztec god Quetzalcōātl’s talisman cut from a conch shell. The urge to collect shells seems to be as old as our species. We’ve used them as decoration, currency, and musical instruments. But shells aren’t just beautiful objects washed up on our beaches. Many belong to one of the most diverse groups of the animal kingdom, Mollusca, and the remarkable morphology of forms and structures they grow in offer insight into the past, present, and future of the marine world. With Suzanne Williams Merit Researcher at the Natural History Museum Liz Harper Professor of Evolutionary Malacology in the Department of Earth Sciences and Fellow at Gonville and Caius College, University of Cambridge Helen Scales Marine biologist and Author. Producer: Martha Owen Reading list: S. Peter Dance, Shells (DK, 2022) A.R. Irwin, S.T. Williams, D.I. Speiser and N.W. Roberts, ‘The marine gastropod Conomurex luhuanus (Strombidae) has high-resolution spatial vision and eyes with complex retinas’ (Journal of Experimental Biology 225:16, 2022) Michael F. Land and Dan-Eric Nilsson, Animal Eyes (Oxford University Press, 2012) Andreia Salvador, Interesting Shells (The Natural History Museum, 2022) Helen Scales, Shell Day: A Story of 24 Hours and 24 Molluscan Lives (University of Chicago Press, 2026) Helen Scales, The Shell Spotter's Guide (National Trust Books, 2024) Helen Scales, What a Shell Can Tell: Where They Live, What They Eat, How They Move, and More (Phaidon Press, 2022) Helen Scales, Spirals in Time: The Secret Life and Curious Afterlife of Seashells (Bloomsbury Sigma, 2015) Paul D. Taylor, Fossils: The Essential Guide (University of Chicago Press, 2025) Suzanne Williams, ‘Molluscan shell colour’ (Biological Reviews, 2017) In Our Time is a BBC Studios production Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.

Misha Glenny and guests discuss the earliest evidence we have of the existence of trees and how even plants we might have on windowsills or as vegetables in gardens can and do, in the right conditions, evolve into trees. Since their emergence around 400 million years ago after low lying plants started to develop stronger stems and grow taller and more upright, trees have transformed our planet, so creating ecosystems, altering the atmosphere and setting the stage for the world as we know it today. With Jenny McElwain 1711 Chair of Botany at Trinity College Dublin and Director of Trinity Botanic Gardens Christopher Berry Senior Lecturer in Earth and Environmental Sciences at Cardiff University And Bill Baker Senior Researcher at the Royal Botanic Gardens, Kew Produced by Conor Garrett Reading list: David Beerling: The Emerald Planet: How Plants Changed Earth's History (Oxford University Press, 2008) C.M. Berry, ‘Palaeobotany: The Rise of the Earth’s Early Forests’ (Current Biology 29, 2019) Christopher M. Berry and John E.A. Marshall, ‘Lycopsid forests in the early Late Devonian paleoequatorial zone of Svalbard’ (Geology 43:12, 2015) N.S. Davies, W.J. McMahon and C.M. Berry, ‘Earth’s earliest forest: fossilized trees and vegetation-induced sedimentary structures from the Middle Devonian (Eifelian) Hangman Sandstone Formation, Somerset and Devon, SW England’ (J. Geol. Soc. 181, 2024) P. Geisen and C.M. Berry, ‘Reconstruction and Growth of the Early Tree Calamophyton (Pseudosporochnales, Cladoxylopsida) Based on Exceptionally Complete Specimens from Lindlar, Germany (Mid-Devonian): Organic Connection of Calamophyton Branches and Duisbergia Trunks’ (International Journal of Plant Sciences 174 (4), 2013) A. Groover and Q. Cronk (eds), Comparative and Evolutionary Genomics of Angiosperm Trees: Plant Genetics and Genomics (Crops and Models, vol 21. Springer, 2017), especially ‘The Evolution of Angiosperm Trees: From Palaeobotany to Genomics’ by Q.C.B. Cronk and F. Forest Jennifer McElwain, Marlene Hill Donnelly, and Ian Glasspool, Tropical Arctic: Lost Plants, Future Climates, and the Discovery of Ancient Greenland (University of Chicago Press, 2021) Harriet Rix, The Genius of Trees: How Trees Mastered the Elements and Shaped the World (Vintage, 2026) W.E. Stein et al., ‘Mid-Devonian Archaeopteris roots signal revolutionary change in earliest fossil forests’ (Current biology, 30:3, 2020) pp.421-431 William E. Stein, Christopher Mark Berry, Linda VanAller Hernick and Frank Mannolini ‘Surprisingly complex community discovered in the mid-Devonian fossil forest at Gilboa’ (Nature 483, 7387, 2012) Max Telford, The Tree of Life: Solving Science's Greatest Puzzle (John Murray, 2026) K.J. Willis, J.C. McElwain, The Evolution of Plants (Oxford University Press, 2014) James Woodford, The Wollemi Pine: The Incredible Discovery of a Living Fossil from the Age of the Dinosaurs (The Text Publishing Company, 2005) Alexandre R. Zuntini et al, ‘Phylogenomics and the rise of the angiosperms’ (Nature vol. 629, April 2024) Spanning history, religion, culture, science and philosophy, In Our Time from BBC Radio 4 is essential listening for the intellectually curious. In each episode, host Misha Glenny and expert guests explore the characters, events and discoveries that have shaped our world.
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