In England during the Middle Ages 25 December was taken as the start of the year. In the late 12th century the start of the year was shifted by nine months to 25 March. The official start of the year only became the familiar 1 January in 1752, the year in which England adopted the Gregorian Calendar.
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Explore space shuttles, the Zero Gravity Space Lab, satellites and space craft.
The Strasburg Clock model has been one of the most popular exhibits at Powerhouse Museum for over 100 years.
Locomotive No. 1 hauled New South Wales' first train and is on permanent display at Powerhouse Museum.