The Postmaster-General's Department was created at Federation in 1901 to control all postal (and later, telecommunication) services within Australia. It was abolished in mid-1975 and replaced with the Australian Telecommunications Commission (trading as Telecom Australia) and the Australian Postal Commission (trading as Australia Post) The Federation of Australia was the process by which the six separate British colonies of New South Wales, Queensland, South Australia, Tasmania, Victoria and Western Australia federated on 1 January 1901, to form the Commonwealth of Australia, of which they became component states. ... 1901 was a common year starting on Tuesday (see link for calendar). ... 1975 was a common year starting on Wednesday (the link is to a full 1975 calendar). ... The Australian Telecommunications Commission was established on July 1, 1975 after the disaggregation of the Postmaster Generals Department, trading as Telecom Australia. ... Telstra Corporation (ASX: TLS) is an Australian telecommunications company, holding a superdominant position in landline telephone services and with a large share of mobile telecommunications, domestic consumer (including dial-up access and broadband cable modem, satellite and ADSL services under the BigPond and Hypermax brands) and business data services, and... Australia Post is the government-owned monopoly postal service of Australia. ...