In this edition the fall of the Ceaușescus in Romania in December 1989, a global panic over bees in the early 2000s and WW2 black GIs finally recognised decades after the war. Plus the building of Abuja as Nigeria's capital and a woman's right to pray in some Hindu temples in India.

(Photo: The army join the revolutionaries in Romania 1989. Credit: Getty Images)

On 7 December 1990 the dissident Cuban novelist and poet Reinaldo Arenas killed himself in New York after years of suffering from AIDS. Before fleeing Cuba, Arenas had been jailed for his homosexuality, sent to re-education camps and prevented from writing. We hear from his friend and fellow writer, Jaime Manrique. Plus the memories of the daughter of the renowned British sculptor, Henry Moore; how the DEA helped track down Pablo Escobar; the ill-fated voyage of Shackleton's ship The Endurance; and inside one of the most notorious prison camps in post Soviet Central Asia.

(Photo: Reinaldo Arenas. Credit: Sophie Bassouls/Sygma/Sygma/Getty Images)

The story of the American scientist Dennis Klatt who pioneered synthesised speech. He used recordings of himself to make the sounds that gave physicist Stephen Hawking a voice. Plus India:struggling to live through economic shock treatment in the 1990s, also LEO the first electronic office system, the first confirmed case of AIDS in America and when Uluru, Australia's famous natural landmark was handed back to the control of the country's indigenous people.

(Photo: BOMBAY, INDIA: World-renowned physicist Stephen Hawking answers questions with the help of a voice synthesiser during a press conference at the Tata Institute of Fundamental Research (TIFR) in Bombay, 06 January 2001. Credit AFP)

The woman who risked her life to reveal that the army, not left-wing rebels, were responsible for the murder of six Jesuit priests in 1980s El Salvador; the moment when the Taser first hit the streets; the long legal fight to reclaim Klimt's masterpiece Woman in Gold; the man who got the Delhi metro built; and travels in Arabia with Wilfred Thesiger.

(Photo: a plaque commemorating the murdered priests in San Salvador- courtesy of David Mee)

In 2004, a German aid agency ship, Cap Anamur, was sailing to the Suez Canal, when it came across 37 Africans on a sinking rubber boat. The captain, Stefan Schmidt, rescued the men and headed for a port in Sicily to drop them off, but he and his crew were promptly arrested by the Italian authorities. Max Pearson finds out more about the incident and about the migration crisis that faced the European Union in later years.

Also this week, an eye-witness account of secret preparations by Hindu extremists to destroy the mosque in the Indian city of Ayodha in 1992; a grassroots struggle against pollution in America; and memories of the British war poet Wilfred Owen.

(Photo: the German aid agency ship Cap Anamur in 2004. Credit: Antonello NUSCA/Gamma-Rapho via Getty Images)

Subversive warfare and 'fake news' in World War Two, the scandal which exposed horrific Indian police violence in the 1980s, two sides of the Iran hostages crisis in 1979, the woman who transformed cancer treatment, and a defining Berlin Wall rock concert.

Photo The actress and singer Agnes Bernelle, who was recruited to be a presenter on a fake German radio station during the war)

The feminist network that performed illegal abortions in the 1960s in Chicago, the Algerian nationals who fought alongside the French in Algeria’s war of independence and when Margaret Thatcher first expressed anti- Europe sentiment. Plus the Paris hotel that hosted Holocaust survivors at the end of the Second World War and the battle to protect the Barrier Reef.

1989 was a seismic year in world history and ended with the fall of the Berlin Wall, the clearest symbol of the Cold War. But it was a series of events across Europe that added to the momentum. We journey back through Poland, Hungary and East Germany ahead of that historic moment in November, through the testimonies of the people who were there at the centre of events; the Solidarity movement in Poland, the protesters in Hungary and East Germany and an account from the first people to cross the wall.

(Photo: East Germans climbing onto the top of the Berlin Wall at the Brandenburg Gate after the opening of the East German border was announced in Berlin. November 9, 1989. Credit: REUTERS/Staff/Files)

A pioneer of climate change science, UK's Windscale nuclear accident, Kenya's Green Belt heroine who won the Nobel Peace Prize, the man "who fed the world", and banning cars in Mexico City.

(Photo: Thick black smoke blowing out of an industrial chimney. Credit: John Giles/PA)

To mark Black History Month in the UK we look back at some landmark moments in British Black History. We hear how the famous cricketer Learie Constantine broke the colour bar, and about the Notting Hill race riots and the Bristol bus boycott. Plus, we speak to Britain’s first black female MP Diane Abbott, and one of the thousands of mixed race children born of relationships between black GIs and British women during the Second World War. With Professor Hakim Adi.

Photo: Sir Learie Constantine outside Westminster Abbey in 1966. Credit: Douglas Miller/Keystone/Getty Images.