Millionaire-making tech start-ups are most often associated with Silicon Valley. But this software revolution begins on a woman’s kitchen table in rural Britain in the 1960s. Steve Shirley faced extraordinary odds. After escaping Nazi Germany as a child, she later encountered workplace discrimination and endured deep personal tragedy. But she persevered to build a business decades ahead of its time, creating opportunities for hundreds of women.

Tim Harford is joined by Ben Walter, CEO of Chase for Business and host of The Unshakeables podcast, to explore the life, legacy and lessons of an overlooked titan of tech.