Melvyn Bragg and guests discuss Alexander Hamilton, James Madison and John Jay's essays written in 1787/8 in support of the new US Constitution. They published these anonymously in New York as 'Publius' but, when it became known that Hamilton and Madison were the main authors, the essays took on a new significance for all states. As those two men played a major part in drafting the Constitution itself, their essays have since informed debate over what the authors of that Constitution truly...

Melvyn Bragg and guests discuss the tiny drifting organisms in the oceans that sustain the food chain for all the lifeforms in the water and so for the billions of people who, in turn, depend on the seas for their diet. In Earth's development, the plant-like ones among them, the phytoplankton, produced so much oxygen through photosynthesis that around half the oxygen we breathe today originated there. And each day as the sun rises, the animal ones, the zooplankton, sink to the depths of the...

In an extended version of the programme that was broadcast, Melvyn Bragg and guests discuss the influential book John Maynard Keynes wrote in 1919 after he resigned in protest from his role at the Paris Peace Conference. There the victors of World War One were deciding the fate of the defeated, especially Germany and Austria-Hungary, and Keynes wanted the world to know his view that the economic consequences would be disastrous for all. Soon Germany used his book to support their claim that...

In the 1000th edition of In Our Time, Melvyn Bragg and guests discuss arguably the most celebrated film of the Swedish director Ingmar Bergman (1918-2007). It begins with an image that, once seen, stays with you for the rest of your life: the figure of Death playing chess with a Crusader on the rocky Swedish shore. The release of this film in 1957 brought Bergman fame around the world. We see Antonius Block, the Crusader, realising he can’t beat Death but wanting to prolong this final...

To mark his 1000th episode of In Our Time, Melvyn Bragg talks to Mishal Husain for Radio 4's Today programme.

Melvyn Bragg and guests discuss the man who, in 1905, produced several papers that were to change the world of physics and whose name went on to become a byword for genius. This was Albert Einstein, then still a technical expert at a Swiss patent office, and that year of 1905 became known as his annus mirabilis ('miraculous year'). While Einstein came from outside the academic world, some such as Max Planck championed his theory of special relativity, his principle of mass-energy equivalence...

Melvyn Bragg and guests discuss the life and ideas of one of the great historians, best known for his History of the Decline and Fall of the Roman Empire (published 1776-89). According to Gibbon (1737-94) , the idea for this work came to him on 15th of October 1764 as he sat musing amidst the ruins of Rome, while barefooted friars were singing vespers in the Temple of Jupiter. Decline and Fall covers thirteen centuries and is an enormous intellectual undertaking and, on publication, it became...

Melvyn Bragg and guests discuss the remarkable diversity of the animals that dominated life on land in the Triassic, before the rise of the dinosaurs in the Jurassic, and whose descendants are often described wrongly as 'living fossils'. For tens of millions of years, the ancestors of alligators and Nile crocodiles included some as large as a bus, some running on two legs like a T Rex and some that lived like whales. They survived and rebounded from a series of extinction events but, while...

Melvyn Bragg and guests discuss the debate in Valladolid, Spain in 1550, over Spanish rights to enslave the native peoples in the newly conquered lands. Bartolomé de Las Casas (pictured above), the Bishop of Chiapas, Mexico, was trying to end the encomienda system in which those who now owned the land could also take the people in forced labour. Juan Gines Sepulveda, a philosopher, argued for the colonists' property rights over people, asserting that some native Americans were 'natural...

Melvyn Bragg and guests discuss one of the outstanding French writers of the twentieth century. The novels of Sidonie-Gabrielle Colette (1873 - 1954) always had women at their centre, from youth to mid-life to old age, and they were phenomenally popular, at first for their freshness and frankness about women’s lives, as in the Claudine stories, and soon for their sheer quality as she developed as a writer. Throughout her career she intrigued readers by inserting herself, or a character with...

Melvyn Bragg and guests discuss the great epic poem attributed to Homer, telling the story of an intense episode in the Trojan War. It is framed by the wrath of the Greek hero Achilles, insulted by his leader Agamemnon and withdrawing from the battle that continued to rage, only returning when his close friend Patroclus is killed by the Trojan hero Hector. Achilles turns his anger from Agamemnon to Hector and the fated destruction of Troy comes ever closer. With Edith Hall Professor of...

Melvyn Bragg and guests discuss the ideas and life of the German theologian, born in Breslau/Wroclaw in 1906 and killed in the Flossenbürg concentration camp on 9th April 1945. Bonhoeffer developed ideas about the role of the Church in the secular world, in particular Germany after the Nazis took power in 1933 and demanded the Churches' support. He strongly opposed anti-Semitism and, with a role in the Military Intelligence Department, took part in the resistance, plotting to kill Hitler and...

Melvyn Bragg and guests discuss the most powerful woman in the Crusader states in the century after the First Crusade. Melisende (1105-61) was born and raised after the mainly Frankish crusaders had taken Jerusalem from the Fatimids, and her father was King of Jerusalem. She was married to Fulk from Anjou, on the understanding they would rule together, and for 30 years she vied with him and then their son as they struggled to consolidate their Frankish state in the Holy Land. The image above...

Melvyn Bragg and guests discuss the abrupt transformation of stars after shining brightly for millions or billions of years, once they lack the fuel to counter the force of gravity. Those like our own star, the Sun, become red giants, expanding outwards and consuming nearby planets, only to collapse into dense white dwarves. The massive stars, up to fifty times the mass of the Sun, burst into supernovas, visible from Earth in daytime, and become incredibly dense neutron stars or black holes....

Melvyn Bragg and guests discuss the Austrian-born film director Fritz Lang (1890-1976), who was one of the most celebrated film-makers of the 20th century. He worked first in Weimar Germany, creating a range of films including the startling and subversive Mabuse the Gambler and the iconic but ruinously expensive Metropolis before arguably his masterpiece, M, with both the police and the underworld hunting for a child killer in Berlin, his first film with sound. The rise of the Nazis prompted...

Melvyn Bragg and guests discuss the simple animals which informed Charles Darwin's first book, The Structure and Distribution of Coral Reefs, published in 1842. From corals, Darwin concluded that the Earth changed very slowly and was not fashioned by God. Now coral reefs, which some liken to undersea rainforests, are threatened by human activity, including fishing, pollution and climate change. With Steve Jones Senior Research Fellow in Genetics at University College London Nicola...

Jupiter is the largest planet in our solar system, and it’s hard to imagine a world more alien and different from Earth. It’s known as a Gas Giant, and its diameter is eleven times the size of Earth’s: our planet would fit inside it one thousand three hundred times. But its mass is only three hundred and twenty times greater, suggesting that although Jupiter is much bigger than Earth, the stuff it’s made of is much, much lighter. When you look at it through a powerful telescope you see a mass...

In 1956 Oxford University awarded an honorary degree to the former US president Harry S. Truman for his role in ending the Second World War. One philosopher, Elizabeth Anscombe (1919 – 2001), objected strongly. She argued that although dropping nuclear bombs on Hiroshima and Nagasaki may have ended the fighting, it amounted to the murder of tens of thousands of innocent civilians. It was therefore an irredeemably immoral act. And there was something fundamentally wrong with a moral...

Death in Venice is Thomas Mann’s most famous – and infamous - novella. Published in 1912, it’s about the fall of the repressed writer Gustav von Aschenbach, when his supposedly objective appreciation of a young boy’s beauty becomes sexual obsession. It explores the link between creativity and self-destruction, and by the end Aschenbach’s humiliation is complete, dying on a deckchair in the act of ogling. Aschenbach's stalking of the boy and dreaming of pederasty can appal modern readers, ...

Sophocles’ play Oedipus Rex begins with a warning: the murderer of the old king of Thebes, Laius, has never been identified or caught, and he’s still at large in the city. Oedipus is the current king of Thebes, and he sets out to solve the crime. His investigations lead to a devastating conclusion. Not only is Oedipus himself the killer, but Laius was his father, and Laius’ wife Jocasta, who Oedipus has married, is his mother. Oedipus Rex was composed during the golden age of Athens, in...

Melvyn Bragg and guests discuss the power-packs within cells in all complex life on Earth. Inside each cell of every complex organism there are structures known as mitochondria. The 19th century scientists who first observed them thought they were bacteria which had somehow invaded the cells they were studying. We now understand that mitochondria take components from the food we eat and convert them into energy. Mitochondria are essential for complex life, but as the components that run...

In 1661 the 23 year-old French king Louis the XIV had been on the throne for 18 years when his chief minister, Cardinal Mazarin, died. Louis is reported to have said to his ministers, “It is now time that I govern my affairs myself. You will assist me with your counsels when I ask for them [but] I order you to seal no orders except by my command… I order you not to sign anything, not even a passport, without my command, and to render account to me personally each day” So began the personal...

In the year 29 BC the great Roman poet Virgil published these lines: Blessed is he who has succeeded in learning the laws of nature’s working, has cast beneath his feet all fear and fate’s implacable decree, and the howl of insatiable Death. But happy too is he who knows the rural gods… They’re from his poem the Georgics, a detailed account of farming life in the Italy of the time. ‘Georgics’ means ‘agricultural things’, and it’s often been read as a farming manual. But it was written at a...

Melvyn Bragg and guests discuss the Christian uprising in Japan and its profound and long-term consequences. In the 1630s, Japan was ruled by the Tokagawa Shoguns, a military dynasty who, 30 years earlier, had unified the country, ending around two centuries of civil war. In 1637 a rebellion broke out in the province of Shimabara, in the south of the country. It was a peasants’ revolt, following years of bad harvests in which the local lord had refused to lower taxes. Many of the rebels...

Melvyn Bragg and guests discuss the revelatory collection of Biblical texts, legal documents, community rules and literary writings. In 1946 a Bedouin shepherd boy was looking for a goat he’d lost in the hills above the Dead Sea. He threw a rock into a cave and heard a hollow sound. He’d hit a ceramic jar containing an ancient manuscript. This was the first of the Dead Sea Scrolls, a collection of about a thousand texts dating from around 250 BC to AD 68. It is the most substantial first...