Summary
On 11-12 February 1851 the first inter-colonial cricket match in Australia was played between Tasmania (then Van Diemen's Land) and Victoria at Launceston, but the cricket culture from which it grew had been put together in the 1840s — with the Melbourne Cricket Club founded in 1838, the first match at the Melbourne Cricket Ground in 1853, and Sydney clubs playing each other from the early 1840s. Cricket was, by the end of the 1840s, the dominant summer game in every Australian colony.
What Happened
Australian cricket grew quickly in the 1840s. The Melbourne Cricket Club had been founded in November 1838 by a group of Scottish settlers; through the 1840s it played other Melbourne clubs on the open ground at Yarra Park. The Sydney Cricket Club, founded in 1826, hosted regular intra-colony fixtures. In Hobart, where the climate and ex-military population were both favourable, cricket was thriving by 1840 and a 'Hobart Town versus Launceston' match in 1844 drew large crowds. The first match between two Australian colonies took place at the NTCA ground in Launceston on 11-12 February 1851 — with Tasmania (under the name Van Diemen's Land) defeating a side representing the Port Phillip District (later Victoria) by three wickets. Although technically just outside the 1840s, the match was the climax of a decade of colonial development. Through the 1840s the game's spread was driven by free settlers and ex-officers; by the end of the decade Melbourne and Sydney both had multiple competing clubs and recognisable inter-club leagues.