Keith Rupert Murdoch', AC, KSG (born 11 March 1931) is an Australian American business magnate. Murdoch became managing director of Australia's News Limited, inherited from his father, in 1952.
In the 1950s and '60s, he acquired various newspapers in Australia and New Zealand, before expanding into the United Kingdom in 1969, taking over the News of the World followed closely by The Sun. He moved to New York in 1974 to expand into the US market, but retained interests in Australia and Britain. In 1981, he bought The Times, his first British broadsheet, and became a naturalised US citizen in 1985.