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New Zealand is the only country in the world in which all the highest offices in the land have been occupied simultaneously by women: Queen [[Elizbeth II]], Governor-General Dame Silvia Cartwright, Prime Minister Helen Clark, Speaker of the House of Representatives Margaret Wilson and Chief Justice Dame Sian Elias were all in office between March 2005 and August 2006.

New Zealand's first woman prime minister was Jenny Shipley, however Helen Clark lays claim to be the first ''elected'' woman prime minister, as Jenny Shipley was appointed to the role by the National Party Caucus to replace the Prime Minister of the time, Jim Bolger.

The New Zealand Parliament<ref>[http://www.govt.nz/ Official government site]</ref> has only one chamber, the House of Representatives, which usually seats 120 Members of Parliament. Parliamentary general elections are held every three years under a form of [[proportional representation]] called Mixed Member Proportional. The 2005 General Election created an 'overhang' of one extra seat, occupied by the Māori Party, due to that party winning more seats in electorates than the number of seats its proportion of the party vote would have given it. The position of Prime Minister falls to the leader of the majority party in Parliament and may be changed at any time at the discretion of the majority party Caucus.