of inquiry (under the Industrial Courts Act 1919) was also set up to consider their regrading, although this failed to find in their favour. The women were only regraded into Category C following a further six-week strike in 1984 (source BBC documentary broadcast 9 March 2013). The 1968 strike was a trigger cause of the passing of the Equal Pay Act 1970. 1969: Inspired by the Ford sewing machinists strike of 1968, women trades unionists founded the National Joint Action Campaign Committee for Women's Equal Rights (NJACCWER), which held an equal pay demonstration attended by 1,000 people in Trafalgar Square on 18 May 1969. 1970: During Miss World 1970, feminist protesters threw flour bombs during the live event at London's Royal Albert Hall, momentarily alarming the host, Bob Hope. 1970: The National Women's Liberation Conference (or National Women's Liberation Movement Conference) was a United Kingdom initiative organised to bring together activists in the Women's Liberation Movement with an aim to developing a shared political outlook. Ten UK conferences took place between 1970 and 1978, with the first taking place in 1970. 1970: The Equal Pay Act 1970 is an Act of the United Kingdom Parliament from 1970 which prohibits any less favourable treatment between women and men in terms of pay and conditions of employment. The Act has now been mostly superseded by Part 5, chapter 3, of the Equality Act 2010. 1971–2000 1972: Jockey Club rules began permitting women jockeys in 1972. 1973: The Matrimonial Causes Act 1973 (c 18) is an Act of Parliament of the United Kingdom governing divorce law and marriage in England and Wales. 1973: Women were first admitted to the London Stock Exchange. 1973: The first known use of the term domestic violence in a modern context, meaning violence in the home, was in an address to the Parliament of the United Kingdom by Jack Ashley in 1973. The term previously referred primarily to civil unrest, violence from within a country as opposed to violence perpetrated by a foreign power. 1973: The marriage bar was abolished in 1973 for the Foreign Service; until then women were required to resign when they married. 1975: The British Geological Survey had a marriage bar until 1975. 1975: The Sex Discrimination Act 1975 (c. 65) was an Act of the Parliament of the United Kingdom which protected people from discrimination on the grounds of sex or marital status.