Ben Chifley in the context of New South Wales Government Railways

The Australian Labor Party (ALP), also known as the Labor Party or simply Labor, is the major centre-left political party in Australia and one of two major parties in Australian politics, along with the centre-right Liberal Party of Australia. The party has been in government since the 2022 federal election, and with political branches active in all the Australian states and territories, they currently hold government in New South Wales, South Australia, Victoria, Western Australia, and the Australian Capital Territory. As of 2025, Queensland, Tasmania and Northern Territory are the only states or territories where Labor currently forms the opposition. It is the oldest continuously operating political party in Australian history, having been established on 8 May 1901 at Parliament House, Melbourne, the meeting place of the first Federal Parliament.

The ALP is descended from the labour parties founded in the various Australian colonies by the emerging labour movement. Colonial Labour parties contested seats from 1891, and began contesting federal seats following Federation at the 1901 federal election. In 1904, the ALP briefly formed what is considered the world's first labour party government and the world's first democratic socialist or social democratic government at a national level. At the 1910 federal election, Labor became the first party in Australia to win a majority in either house of the Australian parliament. In every election since 1910 Labor has either served as the governing party or the opposition. There have been 13 Labor prime ministers and 10 periods of federal Labor governments, including under Billy Hughes from 1915 to 1916, James Scullin from 1929 to 1932, John Curtin from 1941 to 1945, Ben Chifley from 1945 to 1949, Gough Whitlam from 1972 to 1975, Bob Hawke from 1983 to 1991, Paul Keating from 1991 to 1996, Kevin Rudd from 2007 to 2010 and 2013, Julia Gillard from 2010 to 2013, and Anthony Albanese since 2022.

Post-war immigration to Australia deals with migration to Australia in the decades immediately following World War II, and in particular refers to the predominantly European wave of immigration which occurred between 1945 and the end of the White Australia policy in 1973. In the immediate aftermath of World War II, Ben Chifley, Prime Minister of Australia (1945–1949), established the federal Department of Immigration to administer a large-scale immigration program. Chifley commissioned a report on the subject which found that Australia was in urgent need of a larger population for the purposes of defence and development and it recommended a 1% annual increase in population through increased immigration.

The first Minister for Immigration, Arthur Calwell, promoted mass immigration with the slogan "populate or perish". It was Billy Hughes, as Minister for Health and Repatriation, who had coined the "populate or perish" slogan in the 1930s. Calwell coined the term "New Australians" in an effort to supplant such terms as Balt, pommy and wog.

The 1949 Commonwealth Prime Ministers' Conference was the fourth meeting of the Heads of government of the Commonwealth of Nations. It was held in the United Kingdom in April 1949 and was hosted by that country's prime minister, Clement Attlee.

The principal topic of the conference was the relationship of India, which was intending to become a republic, to the Commonwealth, which, hitherto, had been an association of Britain and British dominions united by sharing a constitutional link by sharing the British sovereign as their head of state, in particular whether a Commonwealth state could become a republic and remain in the Commonwealth, if so, whether it had the same status in the Commonwealth as the dominions who had the British sovereign as their head of state. The Canadian government feared that if India was not permitted to remain in the Commonwealth as an autonomous republic then Pakistan, Ceylon, and South Africa would soon leave as well, resulting in the Commonwealth's collapse. Australian prime minister Ben Chifley was on one pole during the conference, arguing for maintaining a strong British connection, while South Africa's newly elected nationalist prime minister, D. F. Malan, was on the other pole arguing for complete independence.

A federal election was held in Australia on 28 September 1946. All 74 seats in the House of Representatives and 19 of the 36 seats in the Senate were up for election. The incumbent Labor Party led by Prime Minister Ben Chifley defeated the opposition Liberal–Country coalition, led by Robert Menzies. It was the Liberal Party's first federal election since its creation. This was the first time the Labor party had won a second consecutive election. This was also the last time the Labor party would win a federal election until the 1972 election.