Queensland State Archives posted a photo:
Labour Day commemorates the achievements of the Australian labour movement. The celebration of Labour Day has its origins in the eight-hour day movement, which advocated eight hours for work, eight hours for recreation, and eight hours for rest.
On 21 April 1856 Stonemasons and building worker on building sites around Melbourne, Australia, stopped work and marched from the University of Melbourne to Parliament House to achieve an eight-hour day.
Their direct action protest was a success, and they are noted as the first organised workers in the world to achieve an eight-hour day with no loss of pay, which subsequently inspired the celebration of Labour Day and May Day.
In Tasmania, the public holiday is called Eight Hours Day and in the Northern Territory it is called May Day. The Labour Day public holiday varies considerably between the various states and territories.
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