In 1981, Sandra Day O'Connor became the first woman judge to be appointed to the US Supreme Court. She was nominated by newly-elected Republican president Ronald Reagan, who'd made the pledge to appoint a woman part of the campaign that led to his landslide victory. Justice O'Connor served for 24 years and had the decisive vote in many landmark cases. Her friend and former law clerk, Ruth McGregor, has been talking to Louise Hidalgo.
Picture: Sandra Day O'Connor is sworn in at the Senate confirmation hearing on her selection as a US Supreme Court justice, September 1981 (Credit: Keystone/Consolidated News Pictures/Getty Images)