Keith Rupert Murdoch is an Australian-born American businessman, media proprietor, and investor. Through his company News Corp, he is the owner of hundreds of local, national, and international publishing outlets around the world, including in the UK, in Australia, in the US, book publisher HarperCollins, and the television broadcasting channels Sky News Australia and Fox News. He was also the owner of Sky, 21st Century Fox, and the now-defunct News of the World. With a net worth of US$21.7 billion as of 2 March 2022, Murdoch is the 31st richest person in the United States and the 71st richest in the world. After his father's death in 1952, Murdoch took over the running of The News, a small Adelaide newspaper owned by his father. In the 1950s and 1960s, Murdoch acquired a number of 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.