The Delian League

The Delian League

Author: BBC Radio 4 July 16, 2026 Duration: 54:44

Misha Glenny and guests discuss the origins and evolution of an alliance which transformed the geopolitics of the classical world: the Delian League. Since the start of the 5th Century BCE, city states across Greece had been fighting a series of armed conflicts in the Greco-Persian Wars. After the defeat of a second Persian invasion in 478 BCE, a league of cities across Greece came together and formed a new alliance led by Athens. That alliance is now known as the Delian League, after the island of Delos where it was established. In the following decades, Athens used the Delian League to grow its own wealth and formidable naval power. Cities which tried to leave the alliance found themselves violently put down and their lands confiscated by the Athenians. What had begun as a cooperative alliance sworn to resist the Persian Empire gradually started to seem like it may have created another imperial power: the Athenian Empire.

With

Leah Lazar Lecturer in Hellenistic Culture at the University of Manchester

Polly Low Professor in the Department of Classics and Ancient History at the University of Durham

And

Paul Cartledge AG Leventis Senior Research Fellow of Clare College, University of Cambridge

Producer: Martha Owen

Aristophanes (trans. David Barrett and Alan H. Sommerstein), The Birds and Other Plays (Penguin Classics, 2003)

Mary Beard, The Parthenon (Profile Books, 2010)

M. Canevaro and D. M. Lewis, 'Between ‘The Character of the Athenian Empire’ and The Origins of the Peloponnesian War (and beyond): The Popularity of the Athenian Empire Revisited' (Polis 41:1, 2024)

Paul Cartledge, Ancient Greece: A Very Short Introduction (Oxford University Press, 2011)

Lisa Kallet and John H. Kroll, The Athenian Empire: Using Coins as Sources (Cambridge University Press, 2020)

Leah Lazar, Athenian Power in the Fifth Century BC (Oxford University Press, 2024)

Polly Low (ed.), The Athenian Empire (Edinburgh University Press, 2008)

Malcolm F. McGregor, The Athenians and their Empire (UBC Press, 1987)

Robin Osborne (ed. and trans.), The Athenian Empire (Cambridge University Press, 2023)

P. J. Rhodes, The Athenian Empire (Clarendon Press, 1985)

Thucydides (trans. Robin Waterfield, introduced by Polly Low), The History of the Peloponnesian War (Basic Books, 2025)

Thucydides (ed. Robert B Strassler), The Landmark Thucydides: A Comprehensive Guide to the Peloponnesian War (Free Press, 1998)

Thucydides (trans. Rex Warner), History of the Peloponnesian War (Penguin Books, 2000)

Thucydides (trans. Martin Hammond), The Peloponnesian War (Oxford University Press, 2009)

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.


For anyone with a restless mind, the weekly In Our Time podcast from BBC Radio 4 offers a deep and engaging conversation across the vast terrain of human thought and experience. Host Misha Glenny guides a panel of distinguished academics, not in lecture format, but through a lively, accessible discussion where ideas genuinely collide and unfold. You might find yourself immersed in the complex legacy of a figure like Napoleon one week, and the next be untangling the scientific principles of photosynthesis or the philosophical arguments of the Enlightenment. The scope is deliberately broad, covering history, religion, culture, science, and philosophy, because understanding one often requires context from another. What you hear is the genuine process of exploration-the questions, the debates, and the connections made in real time by leading experts. It’s the kind of podcast that doesn’t just recount the Sack of Rome or the intricacies of Russian court politics, but examines why these moments mattered and how their echoes are still felt. The result is a consistently stimulating hour that treats listeners as curious equals, offering the intellectual satisfaction of following a great conversation to its illuminating conclusion.
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