Eliza is the name of a 1966 invention by German born scientist, Joseph Weizenbaum, that is said to be the first chatbot.

Eliza worked by someone typing their feelings into a computer keyboard, and then the programme repeated it back to them, often as a question.

Joseph’s daughter, Miriam tells Gill Kearsley about Eliza. We also hear from Joseph through archive interviews from Carnegie Mellon University in Pittsburgh, in the USA, that were recorded with Pamela McCorduck in 1975.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

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(Photo: Joseph Weizenbaum. Credit: Wolfgang Kunz/ullstein bild via Getty Images)