Melvyn Bragg and his guests discuss the Berlin Conference of 1884. In the 1880s, as colonial powers attempted to increase their spheres of influence in Africa, tensions began to grow between European nations including Britain, Belgium and France. In 1884 the German Chancellor, Otto von Bismarck, brought together many of Europe's leading statesmen to discuss trade and colonial activities in Africa. Although the original purpose of the summit was to settle the question of territorial rights in West Africa, negotiations eventually dealt with the entire continent. The conference was part of the process known as the Scramble for Africa, and the decisions reached at it had effects which have lasted to the present day. The conference is commonly seen as one of the most significant events of the so-called Scramble for Africa; in the following decades, European nations laid claim to most of the continent.

With:

Richard Drayton

Richard Rathbone

Joanna Lewis

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Corn Laws. In 1815 the British Government passed legislation which artificially inflated the price of corn. The measure was supported by landowners but strongly opposed by manufacturers and the urban working class. In the 1830s the Anti-Corn Law League was founded to campaign for their repeal, led by the Radical Richard Cobden. The Conservative government of Sir Robert Peel finally repealed the laws in 1846, splitting his party in the process, and the resulting debate had profound consequences for the political and economic future of the country.

With:

Lawrence Goldman

Boyd Hilton

Cheryl Schonhardt-Bailey

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Mamluks, who ruled Egypt and Syria from about 1250 to 1517. Originally slave soldiers who managed to depose their masters, they went on to repel the Mongols and the Crusaders to become the dominant force in the medieval Islamic Middle Eastern world. Although the Mamluks were renowned as warriors, under their rule art, crafts and architecture blossomed. Little known by many in the West today, the Mamluks remained in power for almost 300 years until they were eventually overthrown by the Ottomans.

With:

Amira Bennison

Robert Irwin

Doris Behrens-Abouseif

Producer: Victoria Brignell.

Melvyn Bragg and his guests discuss the Physiocrats, an important group of economic thinkers in eighteenth-century France. The Physiocrats believed that the land was the ultimate source of all wealth, and crucially that markets should not be constrained by governments. Their ideas were important not just to economists but to the course of politics in France. Later they influenced the work of Adam Smith, who called Physiocracy "perhaps the nearest approximation to the truth that has yet been published upon the subject of political economy."

With:

Richard Whatmore

Joel Felix

Helen Paul

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss Queen Zenobia, a famous military leader of the ancient world. Born in around 240 AD, Zenobia was Empress of the Palmyrene Empire in the Middle East. A highly educated, intelligent and militarily accomplished leader, she claimed descent from Dido and Cleopatra and spoke many languages, including Egyptian. Zenobia led a rebellion against the Roman Empire and conquered Egypt before being finally defeated by the Emperor Aurelian. Her story captured the imagination of many Renaissance writers, and has become the subject of numerous operas, poems and plays.

With:

Edith Hall

Kate Cooper

Richard Stoneman

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the Putney Debates. For several weeks in late 1647, after the defeat of King Charles I in the first hostilities of the Civil War, representatives of the New Model Army and the radical Levellers met in a church in Putney to debate the future of England. There was much to discuss: who should be allowed to vote, civil liberties and religious freedom. The debates were inconclusive, but the ideas aired in Putney had a considerable influence on centuries of political thought.

With:

Justin Champion

Ann Hughes

Kate Peters

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the work of Alfred Russel Wallace, a pioneer of evolutionary theory. Born in 1823, Wallace travelled extensively, charting the distribution of animal species throughout the world. This fieldwork in the Amazon and later the Malay Archipelago led him to formulate a theory of evolution through natural selection. In 1858 he sent the paper he wrote on the subject to Charles Darwin, who was spurred into the writing and publication of his own masterpiece On the Origin of Species. Wallace was also the founder of the science of biogeography and made important discoveries about the nature of animal coloration. But despite his visionary work, Wallace has been overshadowed by the greater fame of his contemporary Darwin.

With:

Steve Jones

George Beccaloni

Ted Benton

Producer: Thomas Morris.

Jane Francis, Richard Corfield and Carrie Lear join Melvyn Bragg to discuss ice ages, periods when a reduction in the surface temperature of the Earth has resulted in ice sheets at the Poles. Although the term 'ice age' is commonly associated with prehistoric eras when much of northern Europe was covered in ice, we are in fact currently in an ice age which began up to 40 million years ago. Geological evidence indicates that there have been several in the Earth's history, although their precise cause is not known. Ice ages have had profound effects on the geography and biology of our planet.

With:

Jane Francis

Richard Corfield

Carrie Lear

Producer: Thomas Morris.

Melvyn Bragg and his guests discuss the War of 1812, the conflict between America and the British Empire sometimes referred to as the second American War of Independence. In June 1812, President James Madison declared war on Britain, angered by the restrictions Britain had imposed on American trade, the Royal Navy's capture of American sailors and British support for Native Americans. After three years of largely inconclusive fighting, the conflict finally came to an end with the Treaty of Ghent which, among other things, helped to hasten the abolition of the global slave trade.

Melvyn Bragg and his guests discuss The South Sea Bubble, the speculation mania in early 18th-century England which ended in the financial ruin of many of its investors. The South Sea Company was founded in 1711 with a view to restructuring government debt and restoring public credit. The company would ostensibly trade with South America, hence its name; and indeed, it did trade in slaves for the Spanish market even after the Bubble burst in 1720.

People from all walks of life bought shares in the South Sea Company, from servants to gentry, and it was said the entire country was gripped by South Sea speculation mania. When the shares crashed and the company collapsed there was a public outcry and many people faced financial ruin, although some investors sold before the crash and made substantial amounts of money. For example, the bookseller Thomas Guy made his fortune and founded a hospital in his name the following year.

But how did such a financial crisis develop and were there any lessons learnt following this early example of a stock market boom and bust?

With:

Anne Murphy

Helen Paul

Roey Sweet

Producer: Natalia Fernandez.