context: The Prime Minister of the United Kingdom is the Head of the United Kingdom Government and presides over Cabinet meetings. There is no specific date when the Prime Minister's Office first appeared, as the role was not created but evolved over a period of time. [1] This term was used in the House of Commons in 1805, [2] and it was certainly in parliamentary use by 1880, [3] and in 1905 he was officially recognized as prime minister in the order of precedence. [4] Modern historians generally regard Sir Robert Walpole, who led the government of Great Britain for 21 years in 1721-42, [5] [6] as the first Prime Minister to serve, and Walpole is also the tallest British Prime Minister. [7] However, Sir Henry Campbell-Bannerman was the first distinguished Prime Minister and Margaret Thatcher, the long-serving Prime Minister to be formally referred to as such.
question: Who was the first British Prime Minister?
answers.text: Sir Robert Walpole