The Sunday Times is a British Sunday newspaper whose circulation makes it the largest in Britain's quality press market category. It was founded in 1821 as The New Observer. It is published by Times Newspapers Ltd, a subsidiary of News UK (formerly News International), which is owned by News Corp. Times Newspapers also publishes The Times. The two papers were founded independently and have been under common ownership since 1966. They were bought by News International in 1981. In March 2020, The Sunday Times had a circulation of 647,622, exceeding that of its main rivals, The Sunday Telegraph and The Observer, combined. While some other national newspapers moved to a tabloid format in the early 2000s, The Sunday Times has retained the larger broadsheet format and has said that it would continue to do so. As of December 2019, it sold 75% more copies than its sister paper, The Times, which is published from Monday to Saturday. The paper publishes The Sunday Times Rich List and The Sunday Times Fast Track 100. History Founding and early history (1821–1915) The paper began publication on 18 February 1821 as The New Observer, but from 21 April its title was changed to the Independent Observer. Its founder, Henry White, chose the name apparently in an attempt to take advantage of the success of The Observer, which had been founded in 1791, although there was no connection between the two papers. On 20 October 1822 it was reborn as The Sunday Times, although it had no relationship with The Times. In January 1823, White sold the paper to Daniel Whittle Harvey, a radical politician. Under its new owner, The Sunday Times notched up several firsts: a wood engraving it published of the coronation of Queen Victoria in 1838 was the largest illustration to have appeared in a British newspaper. In 1841, it became one of the first papers to serialise a novel: William Harrison Ainsworth's Old St Paul's. The paper was bought in 1887 by Alice Anne Cornwell, who had made a fortune in mining in Australia and floating the Midas Mine Company of the London Stock Exchange. She bought the paper to promote her new company, The British and Australasian Mining Investment Company, and as a gift to her lover Frederick Stannard ('Phil') Robinson. Robinson was installed as editor and the two were later married in 1894. She then sold it in 1893