Passage: Dawkins has been married three times, and has one daughter. On 19 August 1967, Dawkins married fellow ethologist Marian Stamp in the Protestant church in Annestown, County Waterford, Ireland; they divorced in 1984. On 1 June 1984, he married Eve Barham (1951–1999) in Oxford. They had a daughter, Juliet Emma Dawkins (born 1984, Oxford). Dawkins and Barham divorced. In 1992, he married actress Lalla Ward in Kensington and Chelsea, London. Dawkins met her through their mutual friend Douglas Adams, who had worked with her on the BBC's Doctor Who. Dawkins and Ward separated in 2016 and they later described the separation as "entirely amicable".On 6 February 2016, Dawkins suffered a minor hemorrhagic stroke while at home. Dawkins reported later that same year that he had almost completely recovered.

Question: When did Dawkins and Stamp divorce?
1984