The Unthank sisters, writers Lucy Holland and Oyinkan Braithwaite and historian and feminist activist Sally Alexander join Shahidha Bari for a conversation about what it means to be a sister on International Women's Day 2022. You could make a family from recent novels depicting sisterhood from Oyinkan Braithwaite's My Sister the Serial Killer, to Daisy Johnson's Sisters and Brit Bennett's The Vanishing Half but literary sisterhood goes back via Jane Austen and the Brontës to Chekhov, King Lear's daughters, Cinderella and Greek myths about the seven sisters who formed the Pleiades, or Antigone and Ismene. And if you're looking at feminist history the idea of the sisterhood has been a cornerstone of political action. Is it right that sisters will have a particular bond and sound if they perform music together? All of this and more in tonight's Free Thinking conversation.

Producer: Kevin Core

You might also be interested in the most recent episode of Radio 3's Words and Music on Sisters, with its curated playlist of readings and music of all kinds ranging from Wordsworth, Jane Austen, Brit Bennet and Arifa Akbar to Fanny Mendelssohn, Errollyn Wallen, Hildegard of Bingen and the Labeque Sisters performing Ravel. And tomorrow's programme explores new research into women's history. And there's a playlist on the Free Thinking programme website called Women in the World