Katherine Johnson, Nexhmije Hoxha, Sir Michael Berridge, Diana Serra Cary (Baby Peggy) - a podcast by BBC Radio 4

Pictured: Katherine Johnson

Matthew Bannister on

Nexhmije Hoxha, the wife of the Albanian dictator Enver Hoxha. The couple ran a repressive Stalinist regime and she was known in the West as the Lady Macbeth of Albania.

Katherine Johnson, the best known of a small group of African American mathematicians who carried out crucial calculations for the American space programme. Their story was told in the 2017 film "Hidden Figures".

Sir Michael Berridge, whose pioneering research into the saliva of blowflies revealed the process of cell signalling, with major implications for humans.

And Diana Serra Cary, who, under the screen name "Baby Peggy" Montgomery, was a celebrated child star of silent cinema.

Interviewed guest: Professor James Pettifer
Interviewed guest: Albana Kasapi
Interviewed guest: Dr Martin Bootman
Interviewed guest: Tom Lamont
Interviewed guest: Pamela Hutchinson

Producer: Neil George

Archive clips from: Invasion Of Albania 1939, British Pathé 13/04/2014; Bugajksi Hour, Rezart Taci 23/03/2012; The World Tonight, Radio 4 11/04/1985; Newsnight, BBC Two 11/04/1985; President Obama Awards the Presidential Medal of Freedom, The Obama White House 24/11/2015; Hidden Figures, directed by Theodore Melfi, Fox 2000 Pictures/Chernin Entertainment/Levantine Films/TSG Entertainment 2016; Katherine Johnson: Math Interest, visionaryproject 08/03/2010; 5 Live Breakfast, Radio 5 Live 25/02/2020; What Matters - Katherine Johnson: NASA Pioneer and "Computer", WHRO Public Media 25/02/2011; John Glenn's Historic Space Flight 1962, CNN 08/12/2016; Lewis Wolpert Conversations, Radio 3 01/04/1993; Front Row, Radio 4 18/01/2006; Summer of Silents, Oscars 21/03/2014.

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