proportion of women in the Senate can be seen over a long time period to have drastically grown, with the 1948 Senate being composed of 5.6% women, 14.1% in 1980, 23.7% in 1990, 28.9% in 2002, and 53% in 2021. The second woman elected to the Senate, Annabelle Rankin, also achieved a number of firsts for women: she was the first female Whip, and she was the first woman with a federal portfolio when she became Minister for Housing in 1966. In 1975, Margaret Guilfoyle became the first female cabinet minister with a portfolio. In 1996 Margaret Reid was the first woman elected as President of the Senate. Women in the Senate have made significant changes to Australian law which have benefited women. For example, a private member's bill written by Senator Susan Ryan was crucial to the development of the Sex Discrimination Act 1984, the Affirmative Action (Equal Employment Opportunity for Women) Act 1986, the Public Service Reform Act 1984 and the Equal Employment Opportunity (Commonwealth Authorities) Act 1987. With the appointment of Sarah Henderson to the Senate on 11 September 2019, the number of women in the chamber was equal to the number of men for the first time in history. With the resignation of Richard Di Natale and the appointment of Lidia Thorpe on 4 September 2020, the number of women (39) exceeded the number of men (37) for the first time. List of women in the Australian Senate Names in bold type indicate Ministers and Parliamentary Secretaries. Names in italics indicate appointments made under section 15 of the Constitution, or through disqualification. Names marked with an asterisk (*) also served in the House of Representatives. Where no closing date is shown, the Senator's term of service is unexpired. Timeline Proportion of women in the Senate Numbers and proportions are as they were directly after the beginning of Senate terms and do not take into account deaths, resignations, appointments, defections or other changes in membership. As senators typically serve six-year terms, in the absence of a double dissolution, the numbers of female senators overlap two "terms". State-based Coalition parties that caucus with one of the major parties (Liberal National Party, Country Liberal Party) have been included in the Liberals' or Nationals' totals. See also Women and government in Australia Women in the Australian House of Representatives Notes References Senators Women, Senate Women