Parliament of Australia
From 1901 to 1949, the House consisted of either 74 or 75 members (the Senate had 36). Between 1949 and 1984, it had between 121 and 127 members (the Senate had 60 until 1975, when it increased to 64). In 1977, the High Court ordered that the size of the House be reduced from 127 to 124 members to comply with the nexus provision. In 1984, both the Senate and the House were enlarged; since then the House has had between 148 and 150 members (the Senate has 76).
1975 Australian constitutional crisis
As in most Westminster system parliaments, Australia's government is ordinarily formed by the party enjoying the confidence of the lower House of Parliament, the House of Representatives. However, Australia's Parliament also has a powerful upper house, the Senate, which must pass any legislation initiated by the House of Representatives if it is to become law. The composition of the Senate, in which each state has an equal number of senators regardless of that state's population, was originally designed to attract the Australian colonies into one Federation. The Constitution forbids the Senate to originate or amend a money bill, but places no limitation on the Senate's ability to defeat one. In 1970, Gough Whitlam, as Leader of the Opposition, had stated of a budget bill, "Let me make it clear at the outset that our opposition to this Budget is no mere formality. We intend to press our opposition by all available means on all related measures in both Houses. If the motion is defeated, we will vote against the Bills here and in the Senate. Our purpose is to destroy this Budget and destroy the Government which has sponsored it."