Keith Rupert Murdoch, AC, KCSG is an Australian American business magnate.
Murdoch became managing director of Australia's News Limited, inherited from his father, in 1952.
He is the founder, Chairman and CEO of global media holding company News Corporation, the world's second-largest media conglomerate, and its successors News Corp and 21st Century Fox after the conglomerate split on 28 June 2013.
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.
In 1986, keen to adopt newer electronic publishing technologies, he consolidated his UK printing operations in Wapping, causing bitter industrial disputes.
His News Corporation acquired Twentieth Century Fox, HarperCollins and The Wall Street Journal.
He formed BSkyB in 1990 and during the 1990s expanded into Asian networks and South American television.