Records of Prime Ministers of the United Kingdom combined with his first term (13 July 176530 July 1766) his total time in office was 1 year and 113 days, which exceeds the total periods of several other Prime Ministers. (The Duke of Wellington had also served as Prime Minister between 1828 and 1830.) Consequently, the Prime Minister with the total shortest period in office was George Canning, whose sole term lasted 119 days from 12 April 1827 until his death on 8 August 1827. The Prime Minister with the longest period between the start of their first appointment and the end of their final term was the Duke
Historical rankings of Prime Ministers of the United Kingdom judged to be Anthony Eden. Historian Francis Beckett ranked the 20th-century prime ministers with points out of five in 2006, based on how well the leaders implemented their policies—not on the policies themselves. Margaret Thatcher and Clement Attlee shared the highest ranking. In September 2008 the BBC "Newsnight" programme conducted an online poll. Asking voters to decide who they thought was the greatest and worst of post-war prime ministers. 27,000 people responded, and decided that Winston Churchill was the greatest, with Attlee second. The full results were: In a BBC poll to find the 100 Greatest Britons in 2002, five